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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 23351–23400 of 25,000+ products

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

630-4381

ID (MM) 5.766
OD (MM) 28.575
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4382

ID (MM) 5.766
OD (MM) 28.575
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4383

ID (MM) 5.766
OD (MM) 28.575
Thickness (MM) 2.286
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4384

ID (MM) 5.766
OD (MM) 31.75
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4385

ID (MM) 5.766
OD (MM) 31.75
Thickness (MM) 1.575
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4386

ID (MM) 5.766
OD (MM) 31.75
Thickness (MM) 2.286
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4387

ID (MM) 5.766
OD (MM) 34.925
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4388

ID (MM) 5.766
OD (MM) 34.925
Thickness (MM) 1.575
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4389

ID (MM) 5.766
OD (MM) 34.925
Thickness (MM) 2.286
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4390

ID (MM) 5.766
OD (MM) 38.1
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4391

ID (MM) 5.766
OD (MM) 38.1
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4392

ID (MM) 5.766
OD (MM) 38.1
Thickness (MM) 2.286
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4393

ID (MM) 5.791
OD (MM) 9.906
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4394

ID (MM) 5.817
OD (MM) 6.807
Thickness (MM) 0.203
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4395

ID (MM) 5.817
OD (MM) 7.569
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4396

ID (MM) 5.817
OD (MM) 7.849
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4397

ID (MM) 5.817
OD (MM) 11.1
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4398

ID (MM) 5.842
OD (MM) 9.525
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4399

ID (MM) 5.842
OD (MM) 10.719
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4400

ID (MM) 5.842
OD (MM) 11.506
Thickness (MM) 1.549
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4401

ID (MM) 5.842
OD (MM) 12.065
Thickness (MM) 0.838
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4402

ID (MM) 5.842
OD (MM) 12.573
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4403

ID (MM) 5.842
OD (MM) 12.7
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4404

ID (MM) 5.842
OD (MM) 25.375
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4405

ID (MM) 5.867
OD (MM) 13.157
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4406

ID (MM) 5.867
OD (MM) 14.249
Thickness (MM) 0.991
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4407

ID (MM) 5.893
OD (MM) 10.541
Thickness (MM) 1.168
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4408

ID (MM) 5.918
OD (MM) 11.278
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4409

ID (MM) 5.918
OD (MM) 11.506
Thickness (MM) 1.549
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4410

ID (MM) 5.918
OD (MM) 12.04
Thickness (MM) 0.737
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4411

ID (MM) 5.944
OD (MM) 15.85
Thickness (MM) 1.194
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4412

ID (MM) 5.944
OD (MM) 16.053
Thickness (MM) 1.194
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4413

ID (MM) 5.969
OD (MM) 7.036
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4414

ID (MM) 5.969
OD (MM) 7.569
Thickness (MM) 0.356
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4415

ID (MM) 5.969
OD (MM) 8.661
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4416

ID (MM) 5.969
OD (MM) 9.271
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4417

ID (MM) 5.969
OD (MM) 9.449
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4418

ID (MM) 5.969
OD (MM) 9.525
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4419

ID (MM) 5.969
OD (MM) 16.662
Thickness (MM) 0.203
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4420

ID (MM) 5.994
OD (MM) 10.668
Thickness (MM) 0.457
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4421

ID (MM) 5.994
OD (MM) 10.846
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4422

ID (MM) 5.994
OD (MM) 11.1
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4423

ID (MM) 5.994
OD (MM) 11.405
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4424

ID (MM) 5.994
OD (MM) 12.573
Thickness (MM) 1.092
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4425

ID (MM) 5.994
OD (MM) 12.7
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4426

ID (MM) 6.02
OD (MM) 8.382
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4427

ID (MM) 6.02
OD (MM) 9.068
Thickness (MM) 0.381
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4428

ID (MM) 6.02
OD (MM) 9.398
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4429

ID (MM) 6.02
OD (MM) 10.338
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4430

ID (MM) 6.02
OD (MM) 12.725
Thickness (MM) 1.295
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity