Standard Flat Washers - General-Purpose Washers in All Sizes & Materials

Standard washers are the most widely used fastener components across industrial, commercial, and consumer applications, providing reliable load distribution, surface protection, and joint stability. Superior Washer & Gasket Corp supplies standard flat washers in a comprehensive range of sizes and materials-including steel, stainless steel, brass, aluminum, copper, and nylon-from one of the largest domestic washer inventories available.

As an ISO 9001:2015 certified washer manufacturer, we maintain broad inventory of standard washers for fast delivery and offer custom washer production for non-standard sizes and materials. Whether you need standard SAE or USS washers or custom flat washers in specialty materials, our washer supply capabilities deliver consistent quality made in the U.S.A.

SAE and USS standard washer sizes in stock
Steel, stainless steel, brass, aluminum, and nylon options
Custom standard and special washers available
ISO 9001:2015 certified quality management
Made in the U.S.A. with fast delivery

Showing 1101–1150 of 1,280 products

SKU	ID	OD	Thickness	Material	Size	ID TOL	OD TOL	Quantity
SP3-60	ID 0.123	OD 0.178	Thickness 0.02	Material Stainless Steel	Size 4	ID TOL +-.005	OD TOL +-.005	Quantity
SP3-61	ID 0.687	OD 0.873	Thickness 0.003	Material Stainless Steel	Size 5/8	ID TOL +-.005	OD TOL +-.005	Quantity
SP3-62	ID 0.687	OD 0.873	Thickness 0.005	Material Stainless Steel	Size 5/8	ID TOL +-.005	OD TOL +-.005	Quantity
SP3-63	ID 0.687	OD 0.873	Thickness 0.007	Material Stainless Steel	Size 5/8	ID TOL +-.005	OD TOL +-.005	Quantity
SP3-64	ID 0.687	OD 0.873	Thickness 0.01	Material Stainless Steel	Size 5/8	ID TOL +-.005	OD TOL +-.005	Quantity
SP3-65	ID 0.687	OD 0.873	Thickness 0.02	Material Stainless Steel	Size 5/8	ID TOL +-.005	OD TOL +-.005	Quantity
SP3-7	ID 0.253	OD 0.373	Thickness 0.02	Material Stainless Steel	Size 1/4	ID TOL +-.005	OD TOL +-.005	Quantity
SP3-71	ID 0.167	OD 0.248	Thickness 0.02	Material Stainless Steel	Size 8	ID TOL +-.005	OD TOL +-.005	Quantity
SP3-72	ID 0.206	OD 0.31	Thickness 0.02	Material Stainless Steel	Size 10	ID TOL +-.005	OD TOL +-.005	Quantity
SP3-9	ID 0.253	OD 0.373	Thickness 0.062	Material Stainless Steel	Size 1/4	ID TOL +-.005	OD TOL +-.005	Quantity
SS-0TYBN	ID 0.068	OD 0.125	Thickness 0.025	Material Stainless Steel	Size 0	ID TOL Not available	OD TOL Not available	Quantity
SS-0TYBR	ID 0.068	OD 0.188	Thickness 0.025	Material Stainless Steel	Size 0	ID TOL Not available	OD TOL Not available	Quantity
SS-0TYBW	ID 0.068	OD 0.25	Thickness 0.025	Material Stainless Steel	Size 0	ID TOL Not available	OD TOL Not available	Quantity
SS-1"USS	ID 1.062	OD 2.5	Thickness Not available	Material Stainless Steel	Size 1"	ID TOL Not available	OD TOL Not available	Quantity
SS-1-1/2TYAW	ID 1.625	OD 3.5	Thickness 0.18	Material Stainless Steel	Size 1-1/2	ID TOL Not available	OD TOL Not available	Quantity
SS-1-1/2TYBN	ID 1.562	OD 2.75	Thickness 0.16	Material Stainless Steel	Size 1-1/2	ID TOL Not available	OD TOL Not available	Quantity
SS-1-1/2TYBR	ID 1.562	OD 3.5	Thickness 0.25	Material Stainless Steel	Size 1-1/2	ID TOL Not available	OD TOL Not available	Quantity
SS-1-1/2TYBW	ID 1.562	OD 4.0	Thickness 0.25	Material Stainless Steel	Size 1-1/2	ID TOL Not available	OD TOL Not available	Quantity
SS-1-1/4TYBN	ID 1.312	OD 2.25	Thickness 0.16	Material Stainless Steel	Size 1-1/4	ID TOL Not available	OD TOL Not available	Quantity
SS-1-1/4TYBR	ID 1.312	OD 3.0	Thickness 0.16	Material Stainless Steel	Size 1-1/4	ID TOL Not available	OD TOL Not available	Quantity
SS-1-1/4TYBW	ID 1.312	OD 3.5	Thickness 0.25	Material Stainless Steel	Size 1-1/4	ID TOL Not available	OD TOL Not available	Quantity
SS-1-1/8TYBN	ID 1.188	OD 2.0	Thickness 0.1	Material Stainless Steel	Size 1-1/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1-1/8TYBR	ID 1.188	OD 2.75	Thickness 0.16	Material Stainless Steel	Size 1-1/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1-1/8TYBW	ID 1.188	OD 3.25	Thickness 0.16	Material Stainless Steel	Size 1-1/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1-3/4TYBN	ID 1.875	OD 3.25	Thickness 0.16	Material Stainless Steel	Size 1-3/4	ID TOL Not available	OD TOL Not available	Quantity
SS-1-3/4TYBR	ID 1.875	OD 4.0	Thickness 0.25	Material Stainless Steel	Size 1-3/4	ID TOL Not available	OD TOL Not available	Quantity
SS-1-3/4TYBW	ID 1.875	OD 4.5	Thickness 0.25	Material Stainless Steel	Size 1-3/4	ID TOL Not available	OD TOL Not available	Quantity
SS-1-3/8TYBN	ID 1.438	OD 2.5	Thickness 0.16	Material Stainless Steel	Size 1-3/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1-3/8TYBR	ID 1.438	OD 3.25	Thickness 0.16	Material Stainless Steel	Size 1-3/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1-3/8TYBW	ID 1.438	OD 3.75	Thickness 0.25	Material Stainless Steel	Size 1-3/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1-5/8TYBN	ID 1.75	OD 3.0	Thickness 0.16	Material Stainless Steel	Size 1-5/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1-5/8TYBR	ID 1.75	OD 3.75	Thickness 0.25	Material Stainless Steel	Size 1-5/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1-5/8TYBW	ID 1.75	OD 4.25	Thickness 0.25	Material Stainless Steel	Size 1-5/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1-7/8TYBN	ID 2.0	OD 3.5	Thickness 0.25	Material Stainless Steel	Size 1-7/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1-7/8TYBR	ID 2.0	OD 4.25	Thickness 0.25	Material Stainless Steel	Size 1-7/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1-7/8TYBW	ID 2.0	OD 4.75	Thickness 0.25	Material Stainless Steel	Size 1-7/8	ID TOL Not available	OD TOL Not available	Quantity
SS-1.0TYBN	ID 1.062	OD 1.75	Thickness 0.1	Material Stainless Steel	Size 1.000	ID TOL Not available	OD TOL Not available	Quantity
SS-1.0TYBR	ID 1.062	OD 2.5	Thickness 0.16	Material Stainless Steel	Size 1.000	ID TOL Not available	OD TOL Not available	Quantity
SS-1.0TYBW	ID 1.062	OD 3.0	Thickness 0.16	Material Stainless Steel	Size 1.000	ID TOL Not available	OD TOL Not available	Quantity
SS-1/2TYBN	ID 0.531	OD 1.0	Thickness 0.063	Material Stainless Steel	Size 1/2	ID TOL Not available	OD TOL Not available	Quantity
SS-1/2TYBR	ID 0.531	OD 1.25	Thickness 0.1	Material Stainless Steel	Size 1/2	ID TOL Not available	OD TOL Not available	Quantity
SS-1/2TYBW	ID 0.531	OD 1.75	Thickness 0.1	Material Stainless Steel	Size 1/2	ID TOL Not available	OD TOL Not available	Quantity
SS-1/2USS	ID 0.562	OD 1.375	Thickness Not available	Material Stainless Steel	Size 1/2	ID TOL Not available	OD TOL Not available	Quantity
SS-1/4TYBN	ID 0.281	OD 0.5	Thickness 0.063	Material Stainless Steel	Size 1/4	ID TOL Not available	OD TOL Not available	Quantity
SS-1/4TYBR	ID 0.281	OD 0.734	Thickness 0.063	Material Stainless Steel	Size 1/4	ID TOL Not available	OD TOL Not available	Quantity
SS-1/4TYBW	ID 0.281	OD 1.0	Thickness 0.063	Material Stainless Steel	Size 1/4	ID TOL Not available	OD TOL Not available	Quantity
SS-1/4USS	ID 0.312	OD 0.75	Thickness Not available	Material Stainless Steel	Size 1/4 (#14)	ID TOL Not available	OD TOL Not available	Quantity
SS-10MS	ID 0.203	OD 0.438	Thickness 0.032	Material Stainless Steel	Size Not available	ID TOL Not available	OD TOL Not available	Quantity
SS-10TYBN	ID 0.203	OD 0.406	Thickness 0.04	Material Stainless Steel	Size 10	ID TOL Not available	OD TOL Not available	Quantity
SS-10TYBR	ID 0.203	OD 0.562	Thickness 0.04	Material Stainless Steel	Size 10	ID TOL Not available	OD TOL Not available	Quantity

Standard Flat Washer Frequently Asked Questions

Below are answers to some of the most common questions about standard flat washers.

What are standard flat washers?
Standard flat washers are the most widely used fastener components across industrial, commercial, and consumer applications. They provide reliable load distribution under bolt heads and nuts, protect bearing surfaces from damage, and improve joint stability. Superior Washer stocks standard flat washers in SAE and USS sizes across a comprehensive range of materials including steel, stainless steel, brass, aluminum, nylon, PTFE, fiber, and phenolic.

What is the difference between SAE and USS standard washers?
SAE (Society of Automotive Engineers) washers have a smaller outer diameter relative to the bolt size and are used in applications requiring a more compact bearing surface. USS (United States Standard) washers have a larger outer diameter, providing a broader load distribution area. Both series are stocked in multiple materials at Superior Washer.

What materials are your standard flat washers available in?
Superior Washer standard flat washers are available in 1008/1010 carbon steel, stainless steel (301/302/304), brass (Alloy 260), nylon, PTFE, fiber (vulcanized), and phenolic. Steel and stainless steel are available in both plain and zinc-plated finishes. Material and size options are listed in the product filter on this page.

What types of standard washers do you carry beyond SAE and USS?
In addition to SAE and USS, Superior Washer stocks Type A and Type B flat washers, bolt and screw washers, machine screw washers, N400/N401/N402 series washers, inner and outer race spacers, and race spacers. Standard Brass, Nylon Standard, PTFE Standard, Phenolic Standard, and Standard Fiber types are also available. See the product filter for the full type listing.

Can you produce custom standard washers?
Yes. Our standard washer catalog covers over 1,270 stocked configurations, and we also manufacture custom washers to non-standard dimensions, materials, or finishes. Contact us via the Quick Quote form or call NY (631) 273-8282 or SC (803) 366-3250.

Are your standard flat washers made in the USA?
Yes. All standard flat washers are manufactured in the United States at our facilities in Hauppauge, NY (CAGE Code: 1L160) and Rock Hill, SC (CAGE Code: 4WUG7) under our ISO 9001:2015 certified Quality Management System. Material certifications are available upon request.

Standard sizing is just one part of our catalog. Explore our full range of flat washers to see every material and configuration we offer.

Standard Flat Washers - General-Purpose Washers in All Sizes & Materials

Standard Flat Washers - General-Purpose Washers in All Sizes & Materials

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Standard Flat Washer Frequently Asked Questions

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Made in USA

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