uhmw bearing pad. Sheet Size: 48″ X 120″ (only available 1/4″ thick or thicker) 96″ X 240″ (only. uhmw bearing pad

 
 Sheet Size: 48″ X 120″ (only available 1/4″ thick or thicker) 96″ X 240″ (onlyuhmw bearing pad - 58% (LM-015-C-PAD) 15 Series UHMW linear replacement pad w/ (2x) screws These pads are 100% equivalent to the following manufacturers: 80/20 – #6590 SKU: LM-015

Standard lengths of 40” and 48”. Phone: (218)782-2295 Fax: (218)782-2297Crane outrigger mats is made of UHMWPE, it is tough, Longlasting and Durable. In stock and ready to ship. APPLY FOR AN ACCOUNT (LINK TO CREDIT APPLICATION) Literature. Bearing Strips come in thicknesses of 1/16”, 1/8” and 1/4”. Plastic Machining Company offers a full line of Poly Hi Solidur replacement parts. 00. The low friction coefficient and high abrasion resistance of UHMW-PE provide an ultra-smooth surface for the vessel to. All things plastics & fast worldwide shipping! 1 888-768-5759 Request wholesale pricing ». These sheets and bars keep their physical properties at temperatures as low as -22°F (-30°C). The boat is on the hard, and the rudder has been removed. Pad . Call: 800. Order) lower price plastic crane pads–Okay Top-rated And Dependable crane mat prices Plastic Sheet . PRODUCTS. FOB Price: US $2. 00. Slip Fit. 88 ($0. Molded UHMW components use 100%. Ertalyte® is a family of unreinforced, semi-crystalline thermoplastic polyester based on polyethylene terephthalate (PET-P) products. 4. Some Examples of parts we can machine from UHMW: UHMW O-rings, UHMW Seats, UHMW Bushings, UHMW Bearings, UHMW Guide Blocks, UHMW Wear Pads, UHMW Washers. #3. UHMW PE is the strongest and toughest of all. Quick View. $17. Certain unfilled plastic materials such as Nylon and Acetal have low coefficients of friction and low wear rates when run against mating metal surfaces. Outrigger Pad Contact Us Phone: +86 17337208596 E-mail: aliceguo@sanyousuhua. 19695 92A Ave, Langley, BC V1M 3B3. It is a high load capacity outrigger crane pad with a large vertical load bearing capacity. All 80/20 bearings are designed for compression loads only and not intended to support hanging loads. Plain bearing on a 1906 S-Motor locomotive showing the axle, bearing, oil supply and oiling pad An early pillow block bearing with a whitemetal plain bearing. Slippery UHMW Polyethylene Tubes. UHMW is well-suited for drag conveyor flights, paddles, sprockets, and feed screws. Especially for Mobile Cranes, Aerial Lifts, Digger Derricks, Concrete Pumpers, Aerial. China Factory UHMWPE Crane Outrigger Pad Bearing 300 Tons . Material Properties. UHMW is corrosion and chemically resistant and can be used in a greater range of environments than metal. This Ultra High Molecular Weight (UHMW) Polyethylene will outwear all other materials, including metals, nylons, urethanes, and fluoroplastics. 02 - $0. Also known as Tivar HPV. million. 50. 16860 State Hwy 11 Greenbush, MN 56726. Applications: Bearing Blocks & Seals, Conveyor Guides, Mixer Liners, Bearing Shields, Bottle Plates, Belt Wipers, Chute Liners, Dough Bins, Mixer Paddles, Bottle Fillers, Bottle Re-Setter, Worm Screws, Cable &. Designed to Be the Best Pad in the Industry. This pad is designed to slide into, and stabilize within, the T-slot. Extremely high wear resistance: Due to its unique molecular structure, the wear resistance is higher than that. Read more; Roller Bearing Inserts - Thru & Blind - UHMW Block Flange Bearings - Two Bolt - Nylon & UHMWPolyurethane Sheet Is A Superior Alternative to UHMW and Nylon For High Wear, Load-Bearing Applications. As to bearing load allowables on that material, last I looked the premium grade topped out at 750 psi at room temp. UHMWPE Products: - Extruded or Molded UHMWPE: Unfilled, natural white - ESD UHMWPE: Anti-static properties of PE-UHMW are often required with high line speeds and conveying rates. Bearings are dimensionally interchangeable with. Redco Synsteel. . dubushings. Designed for extreme wear resistance, this Kevlar-filled nylon 6/6 material lasts up to 20 times longer than unfilled nylon. For pipe sizes of 1. Tel:8619937373622. com or left click on the website customer service online. In stock and ready to ship. Its coefficient of friction is significantly lower than nylon and acetal, and is comparable to PTFE, with superior abrasion resistance. uhmw grounding pad . MSC#52434180 Mfr# 5515480. driver pad ht sprocket p80-8m-30-2517 dodge 112882 extruded track advance track 10. Standard width of 24” scored in either 2”, 3” and 4” intervals for easy snap off. 5 out of 5 stars 633. Outrigger Pads – High Performance Heavy Duty UHMW Jack Pads. Nylon 6 – A natural nylon, this nylon is tough and meets FDA standards. 00. Made from heavy duty polyethylene, they offer protection against. ) UHMW has low load bearing capabilities (500-800PSI). Nylatron is used in gears, sheaves, sprockets, bearings, wear pads and custom parts. Read more; Block Flange Bearings – Two Bolt – Nylon & UHMW. Extruded HDPE Ground Protection Temporary Road Mat Groundmat. If you have interested in our products, pls feel free to contact us. 30mm Uhmw Pads (51 products available) Best quality wear resistant uhmw polyethylene crane outrigger pads black custom size round 30mm thick crane pads $3. In stock and ready to ship. UHMWPE plastic outrigger pads are used to support vehicles and cranes without wang, splintering , bending or any other […]Side-Mount Track RollerCarriages for T-Slotted Framing. Practically nonabsorbent, HDPE won't swell when exposed to moisture. Product Information. Absorbs 1% moisture. Not Required. The OMEGA- ULTRA® UHMWPE is defined as polyethylene whose molecular weight is 3,100,000 or higher. The core concept is that profiles act as guiderails, and pads are inserted into the T-slot to enable movement. 00 - $8. I am in the process of wear pad, hydraulic winch lines / pylon wire assy. Forget the stainless bearings. Green Reprocessed UHMW is an eco-friendly and economical alternative to standard virgin UHMW that uses a blended version of virgin and recycled UHMW (Post. 2023. 71 – $ 6,653. 5-4 / kg. Trelleborg's FQ1000 ultra-high molecular weight polyethylene (UHMW-PE) is the first choice material for facing steel fender panels and other heavy duty applications. Custom manufactured to fit your dimensional requirements. Achieve your dreams without breaking the bank with these tips in this article for making smart financial decisions. . 1-top steel plate; 2-stainless steel plate; 3- UHMWPE sheet ; 4- convex middle plate; 5-sleeve; 6-anchor bolt; 7-rubber sealing ring; 8-base steel plate. In addition to a low-friction surface that prevents sticking and binding, this tough material is impact and wear resistant to handle the scuffs, scrapes, and strikes that other plastics can’t. Orange Peel Textured HDPE Sheets. It has a low coefficient of friction and is designed with rounded corners on the extruded pad, allowing simple installation and replacement. Tech Tip – Ultra high molecular weight polyethylene has a relatively high coefficient of thermal expansion. +. Acetal can be used for applications in chemicals or water. They are available in food-grade nylon for higher speeds and loads and in UHMW for highly caustic applications. 5 million amu. Lowers your NIOSH lift index. We cater to a wide range of applications and industries, providing exceptional products that meet the diverse needs of our customers. 323. 2023. This pad is designed to slide into, and stabilize within, the T-slot. virgin UHMW-PE in every product. The thickness of our UHMW-PE sliding fenders is usually 2 mm to 400 mm, and the size ranges from 1,000 x 1,000 mm to 2000 mm x 6000 mm. Block Flange Bearings – Two Bolt – Nylon & UHMW. Your Professional UHMW-PE Sheet Manufacturer. The single-keyed standard bearing pad profile can be cut to your desired length. 0 /5 · 0 reviews ·Quick Order Pad. UHMW is a poor choice as a bearing for two reasons: 1. Multi Groove Center Disc. , Ltd. Lowest moisture absorption of any of the Tuffkast or nylon materials. HDPE, but the properties of UHMW are more than the application requires. The 4-slot mount – double flange long standard linear bearing with brake holes is typically used in linear motion applications. However, the industry generally agreed that any one, or all, of the following are. Machined Parts. Available in C3 and C4 profiles and compatible with 81x, 81xH and H78 chain. Redco™ SYNSTEEL is a “pulp mill friendly” UHMW/PE engineered specifically for the pulp and paper industry. UHMWPE plastic outrigger pads are used to support vehicles and cranes without warping, splintering , bending or any other damage. In a typical wear pad, recessed steel inserts allow the pads to be rigidly fastened to the steel or aluminum boom. Our team are experts at machining uhmw plastic. 50. Gallery; Contact. or sliding bearings in buildings. As a bearing, UHMW is used in many linear applications with both oil or dry environments. bearing uhmw 1. 50 - $3. UHMW Plastic crane outrigger pads are used under the support legs of heavy cranes, crawler cranes, boom pumps, concrete pumps, fire trucks, utility trucks, tree trimmers, any type of aerial equipment, etc. Redco UHMW Chain Channel Inserts. At the first haulout he pulled them, took ten thou out of the. HDPE has a coefficient of friction of around 0. A 1/2” 48”x96” sheet is over CDN$300. Roll end bearing inserts are fully machined from UHMW stock and designed to work with metal and plastic bearings and housings. UHMW Crane & Outrigger Pads for Heavy Equipment Tough and durable UHMW crane pads. Spokane Branch. 5" Series slide units. This self-lubricating UHMW-PE is an incredibly versatile engineered polymer that is prevalent in a variety of industries and applications. It combines very low friction with excellent impact strength and a wear resistance much better than steel. Kim et al. This system provides a much more adjustable system than traditional bearing swing out hinges, which are fixed in position and prone to misalignment and sagging over time. Also known as Hydlar Z, it is often used for parts that are continuously exposed to wear and abrasion, such as wear strips and bushings. Sheet Size: 48″ X 120″ (only available 1/4″ thick or thicker) 96″ X 240″ (only. Both materials are routinely used in food contact applications where wash. Make the machine work safely! Product advantages: 1. In stock. com Korolath® Bearing Strips are commonly used for hollowcore planks and precast slabs. UHMW is also moisture repulsive and easy to fabricate. 8 /5 · 3 reviews ·Heavy duty flanged bearings have threaded inserts in their bearing pads for a tighter grip on the bearing housing. UHMW PE Pad is designed and produced for the protection of barges, tugboats, water locks and quay walls. A 1/8” 48”x73” sheet is less than CDN$100. UHMW Bearing Pad. It has the highest impact strength of any thermoplastic and is highly resistant to most corrosive materials. Redco™ Nylon is an outlasting, outperforming replacement for traditional metals and other plastics. In stock. Linear Motion. In stock. UHMW Bearing Material. Characteristics of crane outrigger pad truck leg support mats. 10. UHMW is frequently used to make docks and dock fenders for a good cause. 0000000. has spanned the globe for decades providing expansion bearings and structural support solutions for bridges, buildings, and industrial facilities. Installation of bridge supports. Select options; Round Belt Pulleys – Low Friction UHMW $ 0. Three thick pads of Teflon (for the ground board) and four thin pads Teflon (the altitude bearings will rest on these) are at bottom. Materials like PTFE are hydrophobic, meaning they tend to shed water. You might have to provide horizontal restraint (depending on bridge configuration) since it might be taken by the bearings at present. Inner Bearing Surface/Wearing Pads. 8 yrs CN Supplier . Redwood Plastics and Rubber was the first in bringing wear solutions to the forestry industry. 3935 Email: [email protected] Polyethylene (HDPE) Balls. Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) is a subset of the thermoplastic polyethylene. Choose an option 12" x 12" 18" x 18" 20" x 24" 24" x 24" 30" x 30" 36" x 36" 48" x 48" 30" Diameter. Choose from our selection of UHMW polyethylene guides in a wide range of styles and sizes. Call 877. Certain unfilled plastic materials such as Nylon and Acetal have low coefficients of friction and low wear rates when run against mating metal surfaces. Read more; Insert Bearings – Oil-Filled Food Grade Nylon $ 0. Standoffs. Manitou Mfg. Compare Products. 13 od x . This pad is designed to slide into, and stabilize within, the T. Marine fender pad is UHMW-PE 1000 Grade manufactured and machined in sizes to suit the panel. @ 100 fpm: 430: 2 13/16 " 4" 3 1/8 " Two Carriage Panels, One Mounting Rail, Two Carriage Panel Bearing Pads, Two Mounting Rail. HDPE vs UHMW Friction. Also known as Tivar HPV. Often used in high- speed, high- precision, and high-impact applications, such as conveyor rollers and bearings, these. It can be easily attached to the desired constrction. The single-keyed standard linear bearing pad is commonly used with bearings to create linear motion and is made of self-lubricating UHMW. Duramax™ Tuff-Stik™. Redco™ VHMW is a good choice when increased durability, abrasion resistance and performance is required vs. UHMW is unbreakable even at extremely low temperatures, and is FDA and USDA compliant. 00. 2. In stock. . It is this high molecular weight that gives UHMW-PE its unsurpassed. We always put the needs of our customers first. The diameter may be 2 (50mm) to 3″ (75mm) to get enough bearing area. HDPE Ground Mat. Some grades have an even lower value, meaning they. E-mail:okay@chinaupe. Our. 609 (ALSO FITS H-78) Designed for sawmill and planermill use. Call 877-239-4338 for pricing. Read more; Insert Bearings – Oil-Filled Food Grade Nylon $ 0. High Strength UHMWPE Plate for Buffer Pads Bearing Pads Fender Pads. Using new, not recycled material, these incredible pads me with a lifetime guarantee. 4. Reduces noise levels. Crane UHMWPE stabiliser leg pads_Henan HNOKAY HNOKAY crane outrigger pad truck leg support mats are manufactured from UHMW polyethylene, which is one of the toughest plastics known to man. Withstands Loads Up To 3000 psi. Our line of outrigger and jack pads will exceed your requirements. The ultra-high molecular weight polyethylene sheet (referred to as UHMW-PE) is the key promotion of new materials in the period of the. Suitable for food contact, these plates are made of FDA listed UHMW plastic, which has a slippery surface to minimize friction. Redco™ plastics and rubber products have been proven to decrease downtime, and reduce. 0. 3M 4693-H will bond UHMW-PE, and I’ve emailed 3M about using it with wood. IPX® Advanced Wear Technology UHMW Sheet $ 506. Redco™ Neptune™ Blue Rubber sheet is easily identified in food and beverage processes and is a cost-effective way to increase safety and decrease costly contamination problems. Gallery; Contact. nylon upe Order uhmw nylon pad outrigger / outrigger pads UHMW 100% HDPE crane foot support plate, plastic jack pad/bearing pad $ 5 . During the winter months, cold air can make your wooden outrigger pads brittle and weak, potentially leading to structural collapses that can have disastrous consequences for your equipment and operators. PTFE. UHMW Sheet and UHMW Rods reduce noise from impact & vibration. 4. 02″ are the best you can usually hope for and. Our company export Uhmw PE Pad, Crane Foot Bearing Support, we have a whole set of quality management system. Racing, Inc. 5 inches and lower a UHMW pad of 3 mm thickness and for pipe sizes NPS 2 inches and higher a UHMW pad of minimum thickness of 6 mm is used in between pipe support and secondary structural member for isolation purposes and. Product Information. yellow pe uhmw plastic sheet, yellow pe uhmw plastic sheet hard yellow upe crane foot bearing support,crane truck outrigger pads,outrigger mat with uhmw pe sheet Henan Huao Plastic . 00 - $5. 1 yrs CN Supplier . Call 877-239-4338 for pricing. Machined Parts. 3~0. UHMW plastic is an outstanding choice for cost effective abrasion, impact, and chemical resistant properties. 0461-01121 UHMW Gross Beam Bearing. MD-Nylon – Molybdenum Disulfide content to this nylon makes it. Replace bearings on conveyor rollers or press into tubing or pipe to create a roller. customers. Retains Its Physical Properties To -80°c. Sometimes referred to as a “poor man’s PTFE”, it shares many of the same characteristics: FDA compliance, bright white color, almost zero moisture absorption, excellent chemical resistance, and extremely low coefficient of friction / self. Mats have cleats and textured tops to aid with helping the vehicles move smoothly on the. nylon upe Order uhmw nylon pad outrigger / outrigger pads UHMW 100% HDPE crane foot support plate, plastic jack pad/bearing pad $5. High durability, low friction and wear resistance are key reasons why UHMW is the material of choice for many applications. Min Order: 1 piece. Aug. More Durable & Stronger than Timber Pads. They are ideal for moist conditions and are heat tolerant up to 180 degrees F. 10 yrs CN Supplier . If in doubt,. The surface of the special outrigger pad is smooth to ensure the safe use of people and cranes. Less wear on your chain, less noise and less maintenance costs without having to change out your metal channel. There are two bearings made from UHMW, that are fitted in the rudder tube. Interstate Plastics UHMW outrigger pads won't break, are waterproof, won't rust, will work across a wide range of temperatures, and are extremely easy to clean. Made from heavy duty polyethylene, they offer protection against. UHMW PE, Static Control. Provide a resilient, closed cell, cross linked, polyethylene, energy absorbing, foam core of heat laminated construction. UHMW-PE is a unique plastic with an extremely high modecular weight - 4. The T-slot insert linear bearing pad is commonly used with bearings to create linear motion and is made of self-lubricating white UHMW. 2 and at 63 rms 5. Cranes, firetrucks, and aerial work platforms. , Customized 10-100mm High Load-Bearing HDPE Crane Outrigger Pad PE Sheet. A less expensive option is to drill two holes in the end and use a spanner wrench to turn the puck. M&P keeps UHMW in stock so that we are ready for immediate production of your UHMW Machined Parts. 0 pieces. Choose Slideways for all of your cut and extruded plastic wear strip needs. • Optional dual swing out tire carrier also. Achieve your dreams without breaking the bank with these tips in this article for making smart financial decisions. Finding Your Style - Tips to Look Good. Exact values tend to vary between manufacturer and grade, but UHMW is generally lower, with an average value of around 0. UHMWPE plastic outrigger pads are used to support vehicles and cranes without warping, splintering , bending or any other damage. We have a plethora of wholesale polishing pad ranging from microfiber pads to wool pads. More Durable & Stronger than Timber Pads. You can buy factory price uhmw pe pads from a great list of reliable China uhmw pe pads manufacturers, suppliers, traders or plants verified by a third-party inspector. [PDF]MAURER MSM® Sliding Bearings. These parts were once made from bronze and other soft metal alloys that required constant greasing. Our ground protection mats made from 100% recycled high-density polyethylene (HDPE), can hold up to 100 tons and are tough enough to not break. Aug. TIVAR® VMX Food Grade UHMW-PE TIVAR (R) VMX Food Grade UHMW-PE is an EU 10/2011 and FDA 21 CFR 177. It is a high load capacity outrigger crane pad with a large vertical load bearing capacity. Min Order: 100 pieces. UHMW can be machined into virtually anything from small gears and bearings to huge sprockets. For additional information, contact Joe Klein, Applied Plastics , at 414- 764-2900, E-mail: [email protected]" . UHMW wear resistant parts offered by China manufacturer Sanyou Plasticization. I also ordered a bed pivot kit from Detroit Wrecker Sales. 6135 Northdale Houston, TX 77087-5095 Phone Numbers Sales: 713. Make the machine work safely! Product advantages: 1. Thoughts, comments, ideas, etc are all welcome. The plastic (UHMW ? ) bearings from the old roller bar are too loose to go inside our metal tube. Will Not Corrode, Rot, Or Rust. Bridge Bearing Rubber Sheet. Fax: 604 607 6010. Redco™ 750 Sprockets. Uhmw Pad (1410 products available) artificial ice hockey rink for children/ uhmw-pe ice hockey plate/ Portable hockey shooting pads $3. — Boom cranes require impact and wear-resisitant materials for critical Wear Pads, Slider Pads, Sheaves and other components. Select optionsTivar ® HPV is a dry-running sliding material designed to enhance motion and reduce friction among conveying systems and bearings. UHMW Grades: UHMW comes in various grades, including reprocessed, enhanced. Ebony Star is a slightly textured. Now Offering UHMW Outrigger Pads! View Outrigger Pads . UHMW is chemically inert, absorbs virtually no moisture, and can be machined very easily. 20" tubing. 0 pieces (Min Order) CN Shandong Ningjin. 31 - $6. Throughout our history we have worked with. UHMWPE Products: - Extruded or Molded UHMWPE: Unfilled, natural white - ESD UHMWPE: Anti-static properties of PE-UHMW are often required with high line speeds and conveying rates. $ 0. In stock. You can then machine a smaller hex on one end to turn it. Material Properties of UHMW Polyethylene – Thermoplastic. Standard linear bearings are available with single or double flanges, long or short configurations, and standard or high-cycle pads. With over 16 years of experience and expertise, YASU is a leading manufacturer and supplier of high-quality UHMW-PE sheets and machined parts. 1-5/16. Strong, stiff plastic often used for bushings, bearings, and wear pads. . Foam Core. Call 877-239-4338 for pricing. crane outrigger pad in HDPE factory-Okay Heavy duty outrigger pads is made of UHMWPE, it is tough, Longlasting and Durable. Dobsonian Bearing Material. UHMW Outrigger Pads Ultimate Durability Plastic Machining Our pads are virtually […]Split Pillow Block Bearings – Food Grade Nylon & UHMW. UHMW sheet is often used for lining chutes and hoppers in order to protect metal surfaces and promote the flow of solid materials such as sand, woodNylatron is used in gears, sheaves, sprockets, bearings, wear pads and custom parts. 5th Wheel Liner, One Piece. Read more; Block Flange Bearings – Two Bolt – Nylon & UHMW. virgin UHMW-PE in every product. 28 MPa NPP and speed less than 20 r/min (0. 1 833 381 1195. 05. Crane stabilizer pad is made of UHMWPE, it is tough, Longlasting and Durable. But it’s especially useful in low-load water applications, as UHMW will “wet” due to its hydroscopic nature in water. 5 million to 6. Practically nonabsorbent, HDPE won't swell when exposed to moisture. Often used in high- speed, high- precision, and high-impact applications, such as conveyor rollers and bearings, these rods stand up to scratches and scuffs better than our standard UHMW polyethylene rods. Suitable for food contact, these plates are made of FDA listed UHMW plastic, which has a slippery surface to minimize friction. Absorbs 1% moisture. UHMW can be sawed,. UHMW, Acetal, Nylon, Sheet Rubber, Rubber Rollers, Polycarbonate, Acrylic, Polyurethane, PEEK, Tuffkast,. with bores 1/2″ – 1-1/2″. We have modern, high-performance CNC machining centers. UHMW, Acetal, Nylon, Sheet Rubber, Rubber Rollers, Polycarbonate, Acrylic, Polyurethane, PEEK, Tuffkast,. Our capabilities include: CNC Turning. The T-slot insert linear bearing pad is commonly used with bearings to create linear motion and is made of self-lubricating white UHMW. High Impact & Wear Resistance. S) . UHMW Grades – Several grades of UHMW are available, including enhanced bearing and wear, and FDA compliant. Non-staining. Typically used as: Press Roll Bushings, Mitre Box Bushings, Sheave Bearings,High Load Kiln Bearings (30 000+), Boom Pivot Bearings, Barker Bearings. Footprint Size. Moreover, UHMW is suitable for a wide range of temperatures so it fares well outdoors. Watch on. View More +. UHMWPE outrigger mats is used to support heavy vehicles without warping, splintering , bending or any other damage. If you are unsure of the replacement part you. Make the machine work safely! Product advantages: 1. 25 inches to 10 inches. HDPE – High Density Polyethylene is a thermoplastic made from petroleum and is used in low wear applications such as star wheels, cutting boards. Factory Customization Uhmw Pad Uhmwpe Bearing Bridge Elastomer Bearings , Find Complete Details about Factory Customization Uhmw Pad Uhmwpe Bearing Bridge Elastomer Bearings,Uhmw Bearing Pad,Uhmwpe Bridge Bearing,Bridge Elastomer Bearings from Plastic Sheets Supplier or Manufacturer-Henan Sanyou Plasticization. 2023. 00. . Many variations of UHMW are available including FDA compliant, Static. ) it is difficult to machine to tight tolerances (+-) 0. $30. Specification: (LM-015-C-PAD) 15 Series UHMW linear replacement pad w/(2x) screws. Replacement Bearing Pads. Home. Highly temperature and chemical resistant. 18 m/s), the friction coefficients of test bearings are about 50% of the restricted value of the USA military specification MIL-DTL-17901C.