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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 23501–23550 of 25,000+ products

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

630-4531

ID (MM) 6.426
OD (MM) 9.677
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4532

ID (MM) 6.426
OD (MM) 9.982
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4533

ID (MM) 6.426
OD (MM) 10.312
Thickness (MM) 0.051
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4534

ID (MM) 6.426
OD (MM) 10.312
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4535

ID (MM) 6.426
OD (MM) 10.693
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4536

ID (MM) 6.426
OD (MM) 10.693
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4537

ID (MM) 6.426
OD (MM) 10.846
Thickness (MM) 0.203
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4538

ID (MM) 6.426
OD (MM) 10.922
Thickness (MM) 1.448
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4539

ID (MM) 6.426
OD (MM) 11.024
Thickness (MM) 0.406
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4540

ID (MM) 6.426
OD (MM) 11.074
Thickness (MM) 0.889
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4541

ID (MM) 6.426
OD (MM) 11.201
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4542

ID (MM) 6.426
OD (MM) 11.608
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4543

ID (MM) 6.426
OD (MM) 11.811
Thickness (MM) 0.838
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4544

ID (MM) 6.426
OD (MM) 12.192
Thickness (MM) 1.473
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4545

ID (MM) 6.426
OD (MM) 12.217
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4546

ID (MM) 6.426
OD (MM) 12.573
Thickness (MM) 0.025
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4547

ID (MM) 6.426
OD (MM) 12.573
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4548

ID (MM) 6.426
OD (MM) 12.7
Thickness (MM) 0.965
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4549

ID (MM) 6.426
OD (MM) 12.7
Thickness (MM) 1.575
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4550

ID (MM) 6.426
OD (MM) 12.903
Thickness (MM) 0.051
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4551

ID (MM) 6.426
OD (MM) 12.979
Thickness (MM) 2.591
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4552

ID (MM) 6.426
OD (MM) 13.259
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4553

ID (MM) 6.426
OD (MM) 13.513
Thickness (MM) 1.549
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4554

ID (MM) 6.426
OD (MM) 14.173
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4555

ID (MM) 6.426
OD (MM) 14.249
Thickness (MM) 0.051
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4556

ID (MM) 6.426
OD (MM) 14.249
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4557

ID (MM) 6.426
OD (MM) 14.275
Thickness (MM) 1.194
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4558

ID (MM) 6.426
OD (MM) 14.3
Thickness (MM) 1.499
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4559

ID (MM) 6.426
OD (MM) 15.037
Thickness (MM) 1.88
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4560

ID (MM) 6.426
OD (MM) 15.875
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4561

ID (MM) 6.426
OD (MM) 15.875
Thickness (MM) 0.406
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4562

ID (MM) 6.426
OD (MM) 15.875
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4563

ID (MM) 6.426
OD (MM) 15.951
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4564

ID (MM) 6.426
OD (MM) 15.977
Thickness (MM) 1.499
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4565

ID (MM) 6.426
OD (MM) 16.281
Thickness (MM) 0.533
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4566

ID (MM) 6.426
OD (MM) 17.145
Thickness (MM) 1.219
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4567

ID (MM) 6.426
OD (MM) 17.45
Thickness (MM) 1.549
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4568

ID (MM) 6.426
OD (MM) 19.05
Thickness (MM) 1.473
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4569

ID (MM) 6.426
OD (MM) 25.324
Thickness (MM) 1.295
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4570

ID (MM) 6.452
OD (MM) 5.537
Thickness (MM) 0.635
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4571

ID (MM) 6.452
OD (MM) 7.823
Thickness (MM) 0.686
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4572

ID (MM) 6.452
OD (MM) 9.271
Thickness (MM) 0.076
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4573

ID (MM) 6.452
OD (MM) 9.423
Thickness (MM) 0.025
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4574

ID (MM) 6.452
OD (MM) 9.423
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4575

ID (MM) 6.452
OD (MM) 9.423
Thickness (MM) 1.473
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4576

ID (MM) 6.452
OD (MM) 9.474
Thickness (MM) 0.305
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4577

ID (MM) 6.452
OD (MM) 9.525
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4578

ID (MM) 6.452
OD (MM) 9.525
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4579

ID (MM) 6.452
OD (MM) 10.465
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4580

ID (MM) 6.452
OD (MM) 11.1
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity