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

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Showing 1–50 of 1,322 products

SKU	ID	OD	Thickness	Material	Size	Quantity
0	ID 0.064	OD 0.125	Thickness 0.019	Material Brass	Size 0	Quantity
0-156020	ID 0.062	OD 0.156	Thickness 0.02	Material Stainless Steel	Size 0	Quantity
00	ID 0.05	OD 0.109	Thickness 0.015	Material Brass	Size 00	Quantity
00-108015	ID 0.053	OD 0.108	Thickness 0.015	Material Stainless Steel	Size 0	Quantity
000	ID 0.037	OD 0.078	Thickness 0.012	Material Brass	Size 000	Quantity
000-090010	ID 0.04	OD 0.09	Thickness 0.01	Material Stainless Steel	Size 0	Quantity
0S	ID 0.064	OD 0.156	Thickness 0.019	Material Brass	Size 0S	Quantity
1"	ID 1.062	OD 2.5	Thickness 0.144	Material Brass	Size 1"	Quantity
1"R	ID 1.062	OD 2.5	Thickness 0.125	Material Brass	Size 1"R	Quantity
1-1/4R	ID 1.312	OD 3.0	Thickness 0.125	Material Brass	Size 1-1/4R	Quantity
1-1/8R	ID 1.187	OD 2.75	Thickness 0.125	Material Brass	Size 1-1/8R	Quantity
1.125	ID 1.187	OD 2.75	Thickness 0.156	Material Brass	Size 1.125	Quantity
1.25	ID 1.312	OD 3.0	Thickness 0.156	Material Brass	Size 1.25	Quantity
1.375	ID 1.437	OD 3.25	Thickness 0.156	Material Brass	Size 1.375	Quantity
1.5	ID 1.562	OD 3.5	Thickness 0.156	Material Brass	Size 1.5	Quantity
1/2-L	ID 0.562	OD 1.375	Thickness 0.091	Material Brass	Size 1/2 L	Quantity
1/2-S	ID 0.562	OD 1.25	Thickness 0.091	Material Brass	Size 1/2 S	Quantity
10-375040	ID 0.203	OD 0.375	Thickness 0.04	Material Stainless Steel	Size 10	Quantity
10-375050	ID 0.203	OD 0.375	Thickness 0.05	Material Stainless Steel	Size 10	Quantity
10-406040	ID 0.203	OD 0.406	Thickness 0.04	Material Stainless Steel	Size 10	Quantity
10-437040	ID 0.203	OD 0.437	Thickness 0.04	Material Stainless Steel	Size 10	Quantity
10-437050	ID 0.203	OD 0.437	Thickness 0.05	Material Stainless Steel	Size 10	Quantity
10-437062	ID 0.203	OD 0.437	Thickness 0.062	Material Stainless Steel	Size 10	Quantity
10-500062	ID 0.218	OD 0.5	Thickness 0.062	Material Stainless Steel	Size 10	Quantity
10-562040	ID 0.203	OD 0.562	Thickness 0.04	Material Stainless Steel	Size 10	Quantity
10-562050	ID 0.203	OD 0.562	Thickness 0.05	Material Stainless Steel	Size 10	Quantity
10-625050	ID 0.203	OD 0.625	Thickness 0.05	Material Stainless Steel	Size 10	Quantity
10L	ID 0.2	OD 0.5	Thickness 0.04	Material Brass	Size 10L	Quantity
10S	ID 0.2	OD 0.437	Thickness 0.036	Material Brass	Size 10S	Quantity
12-500040	ID 0.227	OD 0.5	Thickness 0.04	Material Stainless Steel	Size 12	Quantity
12-500050	ID 0.227	OD 0.5	Thickness 0.05	Material Stainless Steel	Size 12	Quantity
12L	ID 0.227	OD 0.562	Thickness 0.04	Material Brass	Size 12L	Quantity
12S	ID 0.227	OD 0.5	Thickness 0.04	Material Brass	Size 12S	Quantity
14-500062	ID 0.281	OD 0.5	Thickness 0.062	Material Stainless Steel	Size 1/4	Quantity
14-625050	ID 0.281	OD 0.625	Thickness 0.05	Material Stainless Steel	Size 1/4	Quantity
14-625062	ID 0.281	OD 0.625	Thickness 0.062	Material Stainless Steel	Size 1/4	Quantity
14-687050	ID 0.265	OD 0.687	Thickness 0.05	Material Stainless Steel	Size 1/4	Quantity
14-750062	ID 0.281	OD 0.75	Thickness 0.062	Material Stainless Steel	Size 1/4	Quantity
14L	ID 0.26	OD 0.687	Thickness 0.051	Material Brass	Size 14L	Quantity
14S	ID 0.26	OD 0.562	Thickness 0.04	Material Brass	Size 14S	Quantity
16-750050	ID 0.312	OD 0.75	Thickness 0.05	Material Stainless Steel	Size 2/7	Quantity
16-Jul	ID 0.5	OD 1.125	Thickness 0.081	Material Brass	Size 16-Jul	Quantity
16L	ID 0.282	OD 0.75	Thickness 0.064	Material Brass	Size 16L	Quantity
16S	ID 0.282	OD 0.625	Thickness 0.04	Material Brass	Size 16S	Quantity
18-625062	ID 0.343	OD 0.625	Thickness 0.062	Material Stainless Steel	Size 1/3	Quantity
18-687062	ID 0.343	OD 0.687	Thickness 0.062	Material Stainless Steel	Size 1/3	Quantity
18-750050	ID 0.343	OD 0.75	Thickness 0.05	Material Stainless Steel	Size 1/3	Quantity
18-750062	ID 0.343	OD 0.75	Thickness 0.062	Material Stainless Steel	Size 1/3	Quantity
18-875062	ID 0.343	OD 0.875	Thickness 0.062	Material Stainless Steel	Size 1/3	Quantity
18L	ID 0.31	OD 0.875	Thickness 0.064	Material Brass	Size 18L	Quantity

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

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