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 51–100 of 25,000+ products

SKU	ID	OD	Thickness	ID (MM)	OD (MM)	Thickness (MM)	Material	C	ID MM TOL	OD MM TOL	Quantity
140-100-030	ID 0.19	OD 0.75	Thickness 0.03	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
140-101-060	ID 0.19	OD 0.75	Thickness 0.06	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
140-102-030	ID 0.376	OD 0.875	Thickness 0.03	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
140-103-060	ID 0.376	OD 0.875	Thickness 0.06	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
140-104-030	ID 0.376	OD 0.875	Thickness 0.03	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
140-105-060	ID 0.376	OD 0.875	Thickness 0.06	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
150-10-016	ID 0.126	OD 0.234	Thickness 0.016	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C 0.114	ID MM TOL Not available	OD MM TOL Not available	Quantity
150-11-040	ID 0.244	OD 0.346	Thickness 0.04	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C 0.206	ID MM TOL Not available	OD MM TOL Not available	Quantity
150-12-047	ID 0.323	OD 0.493	Thickness 0.047	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C 0.265	ID MM TOL Not available	OD MM TOL Not available	Quantity
150-13-050	ID 0.312	OD 0.5	Thickness 0.05	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C 0.25	ID MM TOL Not available	OD MM TOL Not available	Quantity
150-14-010	ID 0.375	OD 0.75	Thickness 0.01	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C 0.328	ID MM TOL Not available	OD MM TOL Not available	Quantity
150-15-050	ID 0.227	OD 0.98	Thickness 0.05	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C 0.253	ID MM TOL Not available	OD MM TOL Not available	Quantity
150-16-031	ID 0.375	OD 1.12	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	C 0.343	ID MM TOL Not available	OD MM TOL Not available	Quantity
175-2153	ID Not available	OD Not available	Thickness Not available	ID (MM) 1.905	OD (MM) 4.724	Thickness (MM) 0.483	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2154	ID Not available	OD Not available	Thickness Not available	ID (MM) 2.261	OD (MM) 3.327	Thickness (MM) 0.508	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2155	ID Not available	OD Not available	Thickness Not available	ID (MM) 2.337	OD (MM) 5.08	Thickness (MM) 0.254	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2156	ID Not available	OD Not available	Thickness Not available	ID (MM) 2.337	OD (MM) 5.08	Thickness (MM) 0.406	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2157	ID Not available	OD Not available	Thickness Not available	ID (MM) 2.413	OD (MM) 5.563	Thickness (MM) 1.092	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2158	ID Not available	OD Not available	Thickness Not available	ID (MM) 2.464	OD (MM) 3.912	Thickness (MM) 0.127	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2159	ID Not available	OD Not available	Thickness Not available	ID (MM) 2.515	OD (MM) 3.912	Thickness (MM) 0.381	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2160	ID Not available	OD Not available	Thickness Not available	ID (MM) 2.54	OD (MM) 8.712	Thickness (MM) 0.61	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2161	ID Not available	OD Not available	Thickness Not available	ID (MM) 2.591	OD (MM) 5.918	Thickness (MM) 0.127	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2162	ID Not available	OD Not available	Thickness Not available	ID (MM) 2.921	OD (MM) 5.359	Thickness (MM) 0.508	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2163	ID Not available	OD Not available	Thickness Not available	ID (MM) 2.946	OD (MM) 5.004	Thickness (MM) 0.889	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2164	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.048	OD (MM) 6.299	Thickness (MM) 0.127	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2165	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.099	OD (MM) 4.648	Thickness (MM) 0.381	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2166	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.099	OD (MM) 6.274	Thickness (MM) 0.508	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2167	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.15	OD (MM) 6.299	Thickness (MM) 0.406	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2168	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.15	OD (MM) 7.061	Thickness (MM) 0.838	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2169	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.175	OD (MM) 17.475	Thickness (MM) 1.575	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2170	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.2	OD (MM) 18.212	Thickness (MM) 0.813	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2171	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.226	OD (MM) 15.113	Thickness (MM) 0.508	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2172	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.226	OD (MM) 15.113	Thickness (MM) 0.813	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2173	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.226	OD (MM) 18.161	Thickness (MM) 0.254	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2174	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.251	OD (MM) 6.248	Thickness (MM) 0.254	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2175	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.251	OD (MM) 6.274	Thickness (MM) 0.508	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2176	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.277	OD (MM) 6.299	Thickness (MM) 0.813	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2177	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.277	OD (MM) 7.137	Thickness (MM) 0.813	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2178	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.277	OD (MM) 9.525	Thickness (MM) 0.838	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2179	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.302	OD (MM) 7.849	Thickness (MM) 0.279	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2180	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.353	OD (MM) 6.528	Thickness (MM) 0.584	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2181	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.378	OD (MM) 15.215	Thickness (MM) 1.6	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2182	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.531	OD (MM) 10.312	Thickness (MM) 0.889	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2183	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.607	OD (MM) 7.137	Thickness (MM) 0.813	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2184	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.683	OD (MM) 6.426	Thickness (MM) 0.508	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2185	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.734	OD (MM) 6.35	Thickness (MM) 0.813	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2186	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.759	OD (MM) 6.35	Thickness (MM) 0.254	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2187	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.785	OD (MM) 8.814	Thickness (MM) 0.305	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2188	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.962	OD (MM) 7.823	Thickness (MM) 0.635	Material Copper	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
175-2189	ID Not available	OD Not available	Thickness Not available	ID (MM) 3.962	OD (MM) 7.874	Thickness (MM) 0.635	Material Copper	C Not available	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

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