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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

Showing 22001–22050 of 25,000+ products

SKU ID (MM) OD (MM) Thickness (MM) Material ID MM TOL OD MM TOL Quantity

630-3031

ID (MM) 3.962
OD (MM) 15.875
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3032

ID (MM) 3.962
OD (MM) 15.875
Thickness (MM) 0.635
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3033

ID (MM) 3.962
OD (MM) 15.875
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3034

ID (MM) 3.962
OD (MM) 15.875
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3035

ID (MM) 3.962
OD (MM) 15.875
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3036

ID (MM) 3.962
OD (MM) 15.875
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3037

ID (MM) 3.962
OD (MM) 15.875
Thickness (MM) 1.981
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3038

ID (MM) 3.962
OD (MM) 15.875
Thickness (MM) 2.286
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3039

ID (MM) 3.962
OD (MM) 15.875
Thickness (MM) 2.54
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3040

ID (MM) 3.962
OD (MM) 15.875
Thickness (MM) 3.175
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3041

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3042

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3043

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3044

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3045

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 0.635
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3046

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3047

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3048

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3049

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3050

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 1.981
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3051

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 2.286
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3052

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 2.54
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3053

ID (MM) 3.962
OD (MM) 19.05
Thickness (MM) 3.175
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3054

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3055

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3056

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3057

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3058

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 0.635
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3059

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3060

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3061

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3062

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3063

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 1.981
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3064

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 2.286
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3065

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 2.54
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3066

ID (MM) 3.962
OD (MM) 22.225
Thickness (MM) 3.175
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3067

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3068

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3069

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3070

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3071

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 0.635
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3072

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3073

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3074

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3075

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 1.575
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3076

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 1.981
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3077

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 2.286
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3078

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 2.54
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3079

ID (MM) 3.962
OD (MM) 25.425
Thickness (MM) 3.175
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-3080

ID (MM) 3.988
OD (MM) 9.474
Thickness (MM) 1.549
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity