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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 23251–23300 of 25,000+ products

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

630-4281

ID (MM) 5.588
OD (MM) 12.852
Thickness (MM) 0.889
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4282

ID (MM) 5.588
OD (MM) 13.081
Thickness (MM) 1.549
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4283

ID (MM) 5.588
OD (MM) 14.275
Thickness (MM) 1.168
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4284

ID (MM) 5.588
OD (MM) 15.85
Thickness (MM) 2.235
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4285

ID (MM) 5.588
OD (MM) 17.399
Thickness (MM) 1.245
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4286

ID (MM) 5.588
OD (MM) 17.729
Thickness (MM) 1.499
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4287

ID (MM) 5.588
OD (MM) 19.025
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4288

ID (MM) 5.588
OD (MM) 25.4
Thickness (MM) 2.337
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4289

ID (MM) 5.588
OD (MM) 25.425
Thickness (MM) 2.972
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4290

ID (MM) 5.613
OD (MM) 8.128
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4291

ID (MM) 5.613
OD (MM) 8.992
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4292

ID (MM) 5.613
OD (MM) 9.169
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4293

ID (MM) 5.613
OD (MM) 9.525
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4294

ID (MM) 5.613
OD (MM) 9.55
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4295

ID (MM) 5.613
OD (MM) 9.83
Thickness (MM) 0.635
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4296

ID (MM) 5.613
OD (MM) 10.16
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4297

ID (MM) 5.613
OD (MM) 10.871
Thickness (MM) 0.508
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4298

ID (MM) 5.613
OD (MM) 11.125
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4299

ID (MM) 5.613
OD (MM) 11.252
Thickness (MM) 1.549
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4300

ID (MM) 5.613
OD (MM) 11.862
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4301

ID (MM) 5.613
OD (MM) 12.294
Thickness (MM) 0.635
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4302

ID (MM) 5.613
OD (MM) 12.573
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4303

ID (MM) 5.613
OD (MM) 12.573
Thickness (MM) 1.27
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4304

ID (MM) 5.613
OD (MM) 12.7
Thickness (MM) 1.143
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4305

ID (MM) 5.613
OD (MM) 12.7
Thickness (MM) 1.473
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4306

ID (MM) 5.613
OD (MM) 15.85
Thickness (MM) 1.016
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4307

ID (MM) 5.613
OD (MM) 15.875
Thickness (MM) 1.981
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4308

ID (MM) 5.613
OD (MM) 15.926
Thickness (MM) 1.499
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4309

ID (MM) 5.613
OD (MM) 17.247
Thickness (MM) 1.397
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4310

ID (MM) 5.613
OD (MM) 17.424
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4311

ID (MM) 5.613
OD (MM) 25.4
Thickness (MM) 1.194
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4312

ID (MM) 5.613
OD (MM) 31.699
Thickness (MM) 1.626
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4313

ID (MM) 5.613
OD (MM) 38.202
Thickness (MM) 1.854
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4314

ID (MM) 5.639
OD (MM) 6.655
Thickness (MM) 0.356
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4315

ID (MM) 5.639
OD (MM) 6.756
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4316

ID (MM) 5.639
OD (MM) 7.112
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4317

ID (MM) 5.639
OD (MM) 7.823
Thickness (MM) 0.051
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4318

ID (MM) 5.639
OD (MM) 8.001
Thickness (MM) 0.61
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4319

ID (MM) 5.639
OD (MM) 10.592
Thickness (MM) 1.143
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4320

ID (MM) 5.639
OD (MM) 10.77
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4321

ID (MM) 5.639
OD (MM) 12.7
Thickness (MM) 1.245
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4322

ID (MM) 5.639
OD (MM) 15.773
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4323

ID (MM) 5.639
OD (MM) 19.177
Thickness (MM) 1.473
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4324

ID (MM) 5.639
OD (MM) 25.222
Thickness (MM) 2.337
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4325

ID (MM) 5.639
OD (MM) 25.324
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4326

ID (MM) 5.639
OD (MM) 25.4
Thickness (MM) 2.337
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4327

ID (MM) 5.639
OD (MM) 31.725
Thickness (MM) 2.362
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4328

ID (MM) 5.664
OD (MM) 9.423
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4329

ID (MM) 5.664
OD (MM) 9.627
Thickness (MM) 0.914
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-4330

ID (MM) 5.664
OD (MM) 10.947
Thickness (MM) 0.914
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity