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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 21801–21850 of 25,000+ products

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

630-2831

ID (MM) 3.632
OD (MM) 7.01
Thickness (MM) 1.092
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2832

ID (MM) 3.632
OD (MM) 7.112
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2833

ID (MM) 3.632
OD (MM) 7.112
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2834

ID (MM) 3.632
OD (MM) 7.493
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2835

ID (MM) 3.632
OD (MM) 7.772
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2836

ID (MM) 3.632
OD (MM) 7.874
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2837

ID (MM) 3.632
OD (MM) 8.077
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2838

ID (MM) 3.632
OD (MM) 8.204
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2839

ID (MM) 3.632
OD (MM) 9.754
Thickness (MM) 0.889
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2840

ID (MM) 3.632
OD (MM) 10.922
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2841

ID (MM) 3.632
OD (MM) 12.7
Thickness (MM) 0.737
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2842

ID (MM) 3.632
OD (MM) 14.249
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2843

ID (MM) 3.632
OD (MM) 15.011
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2844

ID (MM) 3.632
OD (MM) 17.45
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2845

ID (MM) 3.658
OD (MM) 5.283
Thickness (MM) 0.152
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2846

ID (MM) 3.658
OD (MM) 5.512
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2847

ID (MM) 3.658
OD (MM) 6.02
Thickness (MM) 0.965
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2848

ID (MM) 3.658
OD (MM) 6.045
Thickness (MM) 0.406
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2849

ID (MM) 3.658
OD (MM) 9.042
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2850

ID (MM) 3.658
OD (MM) 9.728
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2851

ID (MM) 3.658
OD (MM) 10.744
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2852

ID (MM) 3.658
OD (MM) 11.074
Thickness (MM) 0.635
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2853

ID (MM) 3.658
OD (MM) 11.887
Thickness (MM) 0.914
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2854

ID (MM) 3.658
OD (MM) 12.395
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2855

ID (MM) 3.658
OD (MM) 12.7
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2856

ID (MM) 3.658
OD (MM) 12.7
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2857

ID (MM) 3.658
OD (MM) 14.605
Thickness (MM) 1.219
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2858

ID (MM) 3.658
OD (MM) 15.9
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2859

ID (MM) 3.658
OD (MM) 19.025
Thickness (MM) 0.635
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2860

ID (MM) 3.658
OD (MM) 25.375
Thickness (MM) 0.66
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2861

ID (MM) 3.658
OD (MM) 31.699
Thickness (MM) 1.422
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2862

ID (MM) 3.683
OD (MM) 7.874
Thickness (MM) 0.711
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2863

ID (MM) 3.683
OD (MM) 10.16
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2864

ID (MM) 3.683
OD (MM) 11.43
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2865

ID (MM) 3.683
OD (MM) 15.9
Thickness (MM) 1.575
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2866

ID (MM) 3.708
OD (MM) 6.172
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2867

ID (MM) 3.708
OD (MM) 6.35
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2868

ID (MM) 3.708
OD (MM) 6.629
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2869

ID (MM) 3.708
OD (MM) 7.163
Thickness (MM) 0.991
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2870

ID (MM) 3.708
OD (MM) 7.874
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2871

ID (MM) 3.708
OD (MM) 9.5
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2872

ID (MM) 3.708
OD (MM) 19.05
Thickness (MM) 2.311
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2873

ID (MM) 3.734
OD (MM) 5.334
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2874

ID (MM) 3.734
OD (MM) 6.121
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2875

ID (MM) 3.734
OD (MM) 6.299
Thickness (MM) 0.305
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2876

ID (MM) 3.734
OD (MM) 6.375
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2877

ID (MM) 3.734
OD (MM) 6.375
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2878

ID (MM) 3.734
OD (MM) 6.756
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2879

ID (MM) 3.734
OD (MM) 6.858
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2880

ID (MM) 3.734
OD (MM) 6.985
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity