Home | Flat Washers in Every Size, Material & Tolerance

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 1451–1500 of 25,000+ products

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

260-3308

ID (MM) 3.81
OD (MM) 8.712
Thickness (MM) 1.106
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3309

ID (MM) 3.81
OD (MM) 9.525
Thickness (MM) 1.21
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3310

ID (MM) 3.81
OD (MM) 11.1
Thickness (MM) 1.41
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3311

ID (MM) 3.81
OD (MM) 12.7
Thickness (MM) 1.613
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3312

ID (MM) 3.81
OD (MM) 12.954
Thickness (MM) 1.645
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3313

ID (MM) 3.81
OD (MM) 15.875
Thickness (MM) 2.016
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3314

ID (MM) 3.81
OD (MM) 19.05
Thickness (MM) 2.419
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3315

ID (MM) 3.861
OD (MM) 8.052
Thickness (MM) 1.023
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3316

ID (MM) 3.962
OD (MM) 6.147
Thickness (MM) 0.781
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3317

ID (MM) 3.962
OD (MM) 6.35
Thickness (MM) 0.806
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3318

ID (MM) 3.962
OD (MM) 6.731
Thickness (MM) 0.855
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3319

ID (MM) 3.962
OD (MM) 7.137
Thickness (MM) 0.906
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3320

ID (MM) 3.962
OD (MM) 7.925
Thickness (MM) 1.006
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3321

ID (MM) 3.962
OD (MM) 8.712
Thickness (MM) 1.106
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3322

ID (MM) 3.962
OD (MM) 9.144
Thickness (MM) 1.161
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3323

ID (MM) 3.962
OD (MM) 9.525
Thickness (MM) 1.21
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3324

ID (MM) 3.962
OD (MM) 11.1
Thickness (MM) 1.41
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3325

ID (MM) 3.962
OD (MM) 12.7
Thickness (MM) 1.613
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3326

ID (MM) 3.962
OD (MM) 17.45
Thickness (MM) 2.216
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3327

ID (MM) 3.962
OD (MM) 18.44
Thickness (MM) 2.342
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3328

ID (MM) 4.064
OD (MM) 9.525
Thickness (MM) 1.21
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3329

ID (MM) 4.064
OD (MM) 9.906
Thickness (MM) 1.258
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3330

ID (MM) 4.216
OD (MM) 11.1
Thickness (MM) 1.41
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3331

ID (MM) 4.216
OD (MM) 12.7
Thickness (MM) 1.613
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3332

ID (MM) 4.216
OD (MM) 13.208
Thickness (MM) 1.677
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3333

ID (MM) 4.216
OD (MM) 15.875
Thickness (MM) 2.016
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3334

ID (MM) 4.216
OD (MM) 17.45
Thickness (MM) 2.216
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3335

ID (MM) 4.216
OD (MM) 19.05
Thickness (MM) 2.419
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3336

ID (MM) 4.318
OD (MM) 6.604
Thickness (MM) 0.839
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3337

ID (MM) 4.318
OD (MM) 11.963
Thickness (MM) 1.519
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3338

ID (MM) 4.343
OD (MM) 6.35
Thickness (MM) 0.806
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3339

ID (MM) 4.343
OD (MM) 6.604
Thickness (MM) 0.839
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3340

ID (MM) 4.343
OD (MM) 7.137
Thickness (MM) 0.906
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3341

ID (MM) 4.343
OD (MM) 7.925
Thickness (MM) 1.006
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3342

ID (MM) 4.343
OD (MM) 8.712
Thickness (MM) 1.106
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3343

ID (MM) 4.343
OD (MM) 8.966
Thickness (MM) 1.139
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3344

ID (MM) 4.343
OD (MM) 9.525
Thickness (MM) 1.21
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3345

ID (MM) 4.343
OD (MM) 11.1
Thickness (MM) 1.41
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3346

ID (MM) 4.343
OD (MM) 11.659
Thickness (MM) 1.481
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3347

ID (MM) 4.343
OD (MM) 12.7
Thickness (MM) 1.613
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3348

ID (MM) 4.343
OD (MM) 14.275
Thickness (MM) 1.813
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3349

ID (MM) 4.343
OD (MM) 15.875
Thickness (MM) 2.016
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3350

ID (MM) 4.343
OD (MM) 18.669
Thickness (MM) 2.371
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3351

ID (MM) 4.343
OD (MM) 19.05
Thickness (MM) 2.419
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3352

ID (MM) 4.42
OD (MM) 12.649
Thickness (MM) 1.606
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3353

ID (MM) 4.521
OD (MM) 6.35
Thickness (MM) 0.806
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3354

ID (MM) 4.521
OD (MM) 7.925
Thickness (MM) 1.006
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3355

ID (MM) 4.521
OD (MM) 8.712
Thickness (MM) 1.106
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3356

ID (MM) 4.521
OD (MM) 8.89
Thickness (MM) 1.129
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

260-3357

ID (MM) 4.521
OD (MM) 9.525
Thickness (MM) 1.21
Material Nylon
ID MM TOL 0.127
OD MM TOL 0.127
Quantity