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 21901–21950 of 25,000+ products

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

630-2931

ID (MM) 3.861
OD (MM) 8.052
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2932

ID (MM) 3.861
OD (MM) 10.312
Thickness (MM) 1.041
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2933

ID (MM) 3.861
OD (MM) 11.074
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2934

ID (MM) 3.861
OD (MM) 11.1
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2935

ID (MM) 3.861
OD (MM) 12.09
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2936

ID (MM) 3.861
OD (MM) 12.7
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2937

ID (MM) 3.861
OD (MM) 14.199
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2938

ID (MM) 3.861
OD (MM) 16.713
Thickness (MM) 0.889
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2939

ID (MM) 3.861
OD (MM) 18.796
Thickness (MM) 0.838
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2940

ID (MM) 3.861
OD (MM) 25.425
Thickness (MM) 0.61
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2941

ID (MM) 3.886
OD (MM) 7.925
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2942

ID (MM) 3.886
OD (MM) 9.55
Thickness (MM) 1.194
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2943

ID (MM) 3.886
OD (MM) 9.804
Thickness (MM) 0.711
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2944

ID (MM) 3.886
OD (MM) 16.586
Thickness (MM) 0.686
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2945

ID (MM) 3.912
OD (MM) 4.978
Thickness (MM) 0.203
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2946

ID (MM) 3.912
OD (MM) 6.401
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2947

ID (MM) 3.912
OD (MM) 8.306
Thickness (MM) 0.61
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2948

ID (MM) 3.912
OD (MM) 18.999
Thickness (MM) 0.94
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2949

ID (MM) 3.937
OD (MM) 6.35
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2950

ID (MM) 3.937
OD (MM) 7.925
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2951

ID (MM) 3.937
OD (MM) 11.43
Thickness (MM) 2.921
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2952

ID (MM) 3.962
OD (MM) 6.071
Thickness (MM) 0.94
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2953

ID (MM) 3.962
OD (MM) 6.248
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2954

ID (MM) 3.962
OD (MM) 6.299
Thickness (MM) 0.305
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2955

ID (MM) 3.962
OD (MM) 6.35
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2956

ID (MM) 3.962
OD (MM) 6.35
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2957

ID (MM) 3.962
OD (MM) 6.35
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2958

ID (MM) 3.962
OD (MM) 6.35
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2959

ID (MM) 3.962
OD (MM) 6.35
Thickness (MM) 0.635
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2960

ID (MM) 3.962
OD (MM) 6.35
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2961

ID (MM) 3.962
OD (MM) 6.35
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2962

ID (MM) 3.962
OD (MM) 6.401
Thickness (MM) 0.737
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2963

ID (MM) 3.962
OD (MM) 6.477
Thickness (MM) 1.194
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2964

ID (MM) 3.962
OD (MM) 6.629
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2965

ID (MM) 3.962
OD (MM) 6.756
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2966

ID (MM) 3.962
OD (MM) 6.934
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2967

ID (MM) 3.962
OD (MM) 7.112
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2968

ID (MM) 3.962
OD (MM) 7.595
Thickness (MM) 0.66
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2969

ID (MM) 3.962
OD (MM) 7.925
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2970

ID (MM) 3.962
OD (MM) 7.925
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2971

ID (MM) 3.962
OD (MM) 7.925
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2972

ID (MM) 3.962
OD (MM) 7.925
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2973

ID (MM) 3.962
OD (MM) 7.925
Thickness (MM) 0.635
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2974

ID (MM) 3.962
OD (MM) 7.925
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2975

ID (MM) 3.962
OD (MM) 7.925
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2976

ID (MM) 3.962
OD (MM) 7.925
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2977

ID (MM) 3.962
OD (MM) 8.001
Thickness (MM) 1.194
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2978

ID (MM) 3.962
OD (MM) 9.144
Thickness (MM) 0.737
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2979

ID (MM) 3.962
OD (MM) 9.373
Thickness (MM) 0.457
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-2980

ID (MM) 3.962
OD (MM) 9.525
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

YouTube iFrame