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 22551–22600 of 25,000+ products

SKU	ID (MM)	OD (MM)	Thickness (MM)	Material	ID MM TOL	OD MM TOL	Quantity
630-3581	ID (MM) 4.801	OD (MM) 15.824	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3582	ID (MM) 4.801	OD (MM) 25.4	Thickness (MM) 0.864	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3583	ID (MM) 4.801	OD (MM) 26.162	Thickness (MM) 1.041	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3584	ID (MM) 4.801	OD (MM) 28.473	Thickness (MM) 1.245	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3585	ID (MM) 4.801	OD (MM) 31.775	Thickness (MM) 0.483	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3586	ID (MM) 4.801	OD (MM) 38.1	Thickness (MM) 1.575	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3587	ID (MM) 4.826	OD (MM) 5.588	Thickness (MM) 0.051	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3588	ID (MM) 4.826	OD (MM) 5.817	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3589	ID (MM) 4.826	OD (MM) 6.248	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3590	ID (MM) 4.826	OD (MM) 6.274	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3591	ID (MM) 4.826	OD (MM) 6.299	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3592	ID (MM) 4.826	OD (MM) 6.35	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3593	ID (MM) 4.826	OD (MM) 6.375	Thickness (MM) 0.102	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3594	ID (MM) 4.826	OD (MM) 6.375	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3595	ID (MM) 4.826	OD (MM) 6.375	Thickness (MM) 0.406	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3596	ID (MM) 4.826	OD (MM) 6.426	Thickness (MM) 0.762	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3597	ID (MM) 4.826	OD (MM) 6.553	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3598	ID (MM) 4.826	OD (MM) 6.629	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3599	ID (MM) 4.826	OD (MM) 6.731	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3600	ID (MM) 4.826	OD (MM) 6.807	Thickness (MM) 0.203	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3601	ID (MM) 4.826	OD (MM) 7.036	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3602	ID (MM) 4.826	OD (MM) 7.112	Thickness (MM) 0.762	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3603	ID (MM) 4.826	OD (MM) 7.188	Thickness (MM) 0.178	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3604	ID (MM) 4.826	OD (MM) 7.62	Thickness (MM) 0.051	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3605	ID (MM) 4.826	OD (MM) 7.772	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3606	ID (MM) 4.826	OD (MM) 7.899	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3607	ID (MM) 4.826	OD (MM) 7.899	Thickness (MM) 0.305	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3608	ID (MM) 4.826	OD (MM) 8.001	Thickness (MM) 1.016	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3609	ID (MM) 4.826	OD (MM) 8.357	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3610	ID (MM) 4.826	OD (MM) 8.357	Thickness (MM) 0.635	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3611	ID (MM) 4.826	OD (MM) 8.712	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3612	ID (MM) 4.826	OD (MM) 9.119	Thickness (MM) 0.152	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3613	ID (MM) 4.826	OD (MM) 9.525	Thickness (MM) 0.711	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3614	ID (MM) 4.826	OD (MM) 9.55	Thickness (MM) 0.406	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3615	ID (MM) 4.826	OD (MM) 11.074	Thickness (MM) 1.194	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3616	ID (MM) 4.826	OD (MM) 11.1	Thickness (MM) 0.787	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3617	ID (MM) 4.826	OD (MM) 11.887	Thickness (MM) 1.118	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3618	ID (MM) 4.826	OD (MM) 12.573	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3619	ID (MM) 4.826	OD (MM) 12.598	Thickness (MM) 1.016	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3620	ID (MM) 4.826	OD (MM) 12.675	Thickness (MM) 1.194	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3621	ID (MM) 4.826	OD (MM) 12.675	Thickness (MM) 1.473	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3622	ID (MM) 4.826	OD (MM) 12.7	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3623	ID (MM) 4.826	OD (MM) 14.224	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3624	ID (MM) 4.826	OD (MM) 14.757	Thickness (MM) 0.965	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3625	ID (MM) 4.826	OD (MM) 15.875	Thickness (MM) 1.524	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3626	ID (MM) 4.826	OD (MM) 17.399	Thickness (MM) 0.787	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3627	ID (MM) 4.826	OD (MM) 19.025	Thickness (MM) 1.194	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3628	ID (MM) 4.826	OD (MM) 19.025	Thickness (MM) 1.524	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3629	ID (MM) 4.826	OD (MM) 23.774	Thickness (MM) 1.524	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3630	ID (MM) 4.826	OD (MM) 30.15	Thickness (MM) 0.711	Material Stainless Steel	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

New York

South Carolina