Flat Washers in Every Size, Material & Tolerance

Flat washers are essential components in fastener assemblies, distributing load evenly across mating surfaces to prevent wear, protect finishes, and ensure joint integrity. As a leading flat washer manufacturer, Superior Washer & Gasket Corp supplies standard washers, large flat washers, and custom flat washers in aluminum, brass, copper, stainless steel, carbon steel, and nylon-manufactured to your exact specifications.

Our ISO 9001:2015 certified quality management system guarantees consistent dimensional accuracy across every order, from prototype quantities to high-volume production runs. Whether you need special flat washers for a unique application or mil-spec flat washers for aerospace and defense, we deliver reliable solutions made in the U.S.A.

Standard and custom flat washer sizes in stock
Wide selection of materials including stainless steel, brass, aluminum, and nylon
ISO 9001:2015 certified manufacturing and quality control
Custom flat washers produced to print or sample
Competitive pricing with fast turnaround

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Showing 101–150 of 25,000+ products

SKU	ID (MM)	OD (MM)	Thickness (MM)	Material	ID MM TOL	OD MM TOL	Quantity
175-2190	ID (MM) 3.962	OD (MM) 12.802	Thickness (MM) 0.508	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2191	ID (MM) 4.013	OD (MM) 6.604	Thickness (MM) 1.016	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2192	ID (MM) 4.064	OD (MM) 8.357	Thickness (MM) 1.575	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2193	ID (MM) 4.115	OD (MM) 9.5	Thickness (MM) 1.575	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2194	ID (MM) 4.216	OD (MM) 7.417	Thickness (MM) 0.991	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2195	ID (MM) 4.242	OD (MM) 7.366	Thickness (MM) 0.991	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2196	ID (MM) 4.242	OD (MM) 7.899	Thickness (MM) 0.838	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2197	ID (MM) 4.318	OD (MM) 9.525	Thickness (MM) 0.889	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2198	ID (MM) 4.343	OD (MM) 9.525	Thickness (MM) 1.575	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2199	ID (MM) 4.343	OD (MM) 10.439	Thickness (MM) 1.016	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2200	ID (MM) 4.394	OD (MM) 6.401	Thickness (MM) 0.483	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2201	ID (MM) 4.394	OD (MM) 8.763	Thickness (MM) 0.813	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2202	ID (MM) 4.394	OD (MM) 9.55	Thickness (MM) 1.575	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2203	ID (MM) 4.775	OD (MM) 8.712	Thickness (MM) 2.083	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2204	ID (MM) 4.775	OD (MM) 11.125	Thickness (MM) 1.041	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2205	ID (MM) 4.801	OD (MM) 9.474	Thickness (MM) 0.635	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2206	ID (MM) 4.801	OD (MM) 11.125	Thickness (MM) 1.27	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2207	ID (MM) 4.801	OD (MM) 12.725	Thickness (MM) 1.626	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2208	ID (MM) 4.826	OD (MM) 11.125	Thickness (MM) 1.016	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2209	ID (MM) 4.826	OD (MM) 19.075	Thickness (MM) 0.635	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2210	ID (MM) 4.928	OD (MM) 8.026	Thickness (MM) 0.406	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2211	ID (MM) 4.928	OD (MM) 9.525	Thickness (MM) 1.6	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2212	ID (MM) 4.928	OD (MM) 12.624	Thickness (MM) 0.787	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2213	ID (MM) 5.004	OD (MM) 9.144	Thickness (MM) 0.914	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2214	ID (MM) 5.029	OD (MM) 11.125	Thickness (MM) 1.575	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2215	ID (MM) 5.105	OD (MM) 9.627	Thickness (MM) 0.762	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2216	ID (MM) 5.131	OD (MM) 9.5	Thickness (MM) 0.762	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2217	ID (MM) 5.156	OD (MM) 12.7	Thickness (MM) 1.016	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2218	ID (MM) 5.182	OD (MM) 7.899	Thickness (MM) 0.838	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2219	ID (MM) 5.232	OD (MM) 8.89	Thickness (MM) 0.356	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2220	ID (MM) 5.232	OD (MM) 11.938	Thickness (MM) 0.127	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2221	ID (MM) 5.258	OD (MM) 11.125	Thickness (MM) 0.813	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2222	ID (MM) 5.283	OD (MM) 11.125	Thickness (MM) 1.295	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2223	ID (MM) 5.309	OD (MM) 9.373	Thickness (MM) 1.575	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2224	ID (MM) 5.41	OD (MM) 10.846	Thickness (MM) 0.737	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2225	ID (MM) 5.613	OD (MM) 15.9	Thickness (MM) 1.575	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2226	ID (MM) 5.639	OD (MM) 11.125	Thickness (MM) 1.016	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2227	ID (MM) 5.664	OD (MM) 8.357	Thickness (MM) 0.635	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2228	ID (MM) 5.664	OD (MM) 10.744	Thickness (MM) 1.041	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2229	ID (MM) 5.664	OD (MM) 11.125	Thickness (MM) 1.27	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2230	ID (MM) 5.664	OD (MM) 11.151	Thickness (MM) 1.295	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2231	ID (MM) 5.817	OD (MM) 7.925	Thickness (MM) 0.813	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2232	ID (MM) 5.918	OD (MM) 9.423	Thickness (MM) 0.838	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2233	ID (MM) 5.944	OD (MM) 8.001	Thickness (MM) 0.508	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2234	ID (MM) 5.969	OD (MM) 10.338	Thickness (MM) 0.991	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2235	ID (MM) 6.071	OD (MM) 8.915	Thickness (MM) 0.914	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2236	ID (MM) 6.274	OD (MM) 8.814	Thickness (MM) 0.813	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2237	ID (MM) 6.35	OD (MM) 10.439	Thickness (MM) 1.549	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2238	ID (MM) 6.35	OD (MM) 12.573	Thickness (MM) 1.27	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2239	ID (MM) 6.375	OD (MM) 10.338	Thickness (MM) 1.016	Material Copper	ID MM TOL 0.127	OD MM TOL 0.127	Quantity

Flat Washers in Every Size, Material & Tolerance

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A Special to You is Standard to Us

Made in USA

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