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 22051–22100 of 25,000+ products

SKU	ID (MM)	OD (MM)	Thickness (MM)	Material	ID MM TOL	OD MM TOL	Quantity
630-3081	ID (MM) 3.988	OD (MM) 11.1	Thickness (MM) 0.406	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3082	ID (MM) 3.988	OD (MM) 12.7	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3083	ID (MM) 3.988	OD (MM) 13.564	Thickness (MM) 0.914	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3084	ID (MM) 3.988	OD (MM) 14.275	Thickness (MM) 1.245	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3085	ID (MM) 3.988	OD (MM) 14.732	Thickness (MM) 0.762	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3086	ID (MM) 4.013	OD (MM) 6.35	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3087	ID (MM) 4.013	OD (MM) 7.239	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3088	ID (MM) 4.013	OD (MM) 9.093	Thickness (MM) 0.051	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3089	ID (MM) 4.013	OD (MM) 9.525	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3090	ID (MM) 4.013	OD (MM) 9.525	Thickness (MM) 0.406	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3091	ID (MM) 4.013	OD (MM) 9.525	Thickness (MM) 1.016	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3092	ID (MM) 4.013	OD (MM) 11.049	Thickness (MM) 0.889	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3093	ID (MM) 4.013	OD (MM) 11.074	Thickness (MM) 1.143	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3094	ID (MM) 4.013	OD (MM) 14.249	Thickness (MM) 1.27	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3095	ID (MM) 4.013	OD (MM) 14.605	Thickness (MM) 1.016	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3096	ID (MM) 4.013	OD (MM) 15.875	Thickness (MM) 1.168	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3097	ID (MM) 4.013	OD (MM) 18.999	Thickness (MM) 0.787	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3098	ID (MM) 4.013	OD (MM) 22.25	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3099	ID (MM) 4.039	OD (MM) 4.674	Thickness (MM) 0.051	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3100	ID (MM) 4.039	OD (MM) 8.712	Thickness (MM) 0.051	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3101	ID (MM) 4.039	OD (MM) 9.398	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3102	ID (MM) 4.039	OD (MM) 9.525	Thickness (MM) 0.457	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3103	ID (MM) 4.039	OD (MM) 9.525	Thickness (MM) 0.813	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3104	ID (MM) 4.039	OD (MM) 10.109	Thickness (MM) 0.635	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3105	ID (MM) 4.039	OD (MM) 11.1	Thickness (MM) 0.991	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3106	ID (MM) 4.039	OD (MM) 15.621	Thickness (MM) 0.787	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3107	ID (MM) 4.039	OD (MM) 19.05	Thickness (MM) 0.914	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3108	ID (MM) 4.064	OD (MM) 5.537	Thickness (MM) 0.102	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3109	ID (MM) 4.064	OD (MM) 6.172	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3110	ID (MM) 4.064	OD (MM) 6.248	Thickness (MM) 0.076	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3111	ID (MM) 4.064	OD (MM) 6.248	Thickness (MM) 0.203	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3112	ID (MM) 4.064	OD (MM) 6.35	Thickness (MM) 0.711	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3113	ID (MM) 4.064	OD (MM) 6.452	Thickness (MM) 0.762	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3114	ID (MM) 4.064	OD (MM) 6.553	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3115	ID (MM) 4.064	OD (MM) 6.655	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3116	ID (MM) 4.064	OD (MM) 7.087	Thickness (MM) 0.051	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3117	ID (MM) 4.064	OD (MM) 7.112	Thickness (MM) 0.965	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3118	ID (MM) 4.064	OD (MM) 7.112	Thickness (MM) 1.27	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3119	ID (MM) 4.064	OD (MM) 7.163	Thickness (MM) 0.406	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3120	ID (MM) 4.064	OD (MM) 7.417	Thickness (MM) 0.051	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3121	ID (MM) 4.064	OD (MM) 7.772	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3122	ID (MM) 4.064	OD (MM) 7.874	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3123	ID (MM) 4.064	OD (MM) 7.925	Thickness (MM) 1.499	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3124	ID (MM) 4.064	OD (MM) 8.204	Thickness (MM) 0.711	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3125	ID (MM) 4.064	OD (MM) 9.449	Thickness (MM) 1.93	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3126	ID (MM) 4.064	OD (MM) 9.55	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3127	ID (MM) 4.064	OD (MM) 10.693	Thickness (MM) 0.203	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3128	ID (MM) 4.064	OD (MM) 10.973	Thickness (MM) 1.016	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3129	ID (MM) 4.064	OD (MM) 11.1	Thickness (MM) 1.27	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-3130	ID (MM) 4.064	OD (MM) 12.37	Thickness (MM) 0.813	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

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