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 301–350 of 25,000+ products

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

175-2390

ID (MM) 11.252
OD (MM) 13.36
Thickness (MM) 1.626
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2391

ID (MM) 11.43
OD (MM) 18.999
Thickness (MM) 1.575
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2392

ID (MM) 11.455
OD (MM) 18.974
Thickness (MM) 0.787
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2393

ID (MM) 11.455
OD (MM) 19.025
Thickness (MM) 1.295
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2394

ID (MM) 11.582
OD (MM) 22.2
Thickness (MM) 1.575
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2395

ID (MM) 11.582
OD (MM) 22.25
Thickness (MM) 0.787
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2396

ID (MM) 11.608
OD (MM) 15.088
Thickness (MM) 1.549
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2397

ID (MM) 11.608
OD (MM) 15.875
Thickness (MM) 1.575
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2398

ID (MM) 11.608
OD (MM) 22.047
Thickness (MM) 1.575
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2399

ID (MM) 11.862
OD (MM) 15.85
Thickness (MM) 0.813
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2400

ID (MM) 11.887
OD (MM) 15.951
Thickness (MM) 1.016
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2401

ID (MM) 11.913
OD (MM) 18.999
Thickness (MM) 1.575
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2402

ID (MM) 11.913
OD (MM) 25.273
Thickness (MM) 1.6
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2403

ID (MM) 11.963
OD (MM) 22.25
Thickness (MM) 3.175
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2404

ID (MM) 11.963
OD (MM) 25.349
Thickness (MM) 2.413
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2405

ID (MM) 12.04
OD (MM) 22.327
Thickness (MM) 3.226
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2406

ID (MM) 12.09
OD (MM) 15.469
Thickness (MM) 1.549
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2407

ID (MM) 12.09
OD (MM) 23.571
Thickness (MM) 1.575
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2408

ID (MM) 12.192
OD (MM) 17.78
Thickness (MM) 1.524
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2409

ID (MM) 12.319
OD (MM) 13.36
Thickness (MM) 1.93
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2410

ID (MM) 12.319
OD (MM) 15.875
Thickness (MM) 2.007
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2411

ID (MM) 12.319
OD (MM) 15.9
Thickness (MM) 1.93
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2412

ID (MM) 12.471
OD (MM) 17.628
Thickness (MM) 2.311
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2413

ID (MM) 12.624
OD (MM) 20.676
Thickness (MM) 0.787
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2414

ID (MM) 12.7
OD (MM) 19.152
Thickness (MM) 2.21
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2415

ID (MM) 12.7
OD (MM) 20.574
Thickness (MM) 2.388
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2416

ID (MM) 12.725
OD (MM) 15.875
Thickness (MM) 0.508
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2417

ID (MM) 12.725
OD (MM) 18.669
Thickness (MM) 1.575
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2418

ID (MM) 12.751
OD (MM) 18.948
Thickness (MM) 2.261
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2419

ID (MM) 12.751
OD (MM) 19.025
Thickness (MM) 0.533
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2420

ID (MM) 12.751
OD (MM) 24.536
Thickness (MM) 2.362
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2421

ID (MM) 12.776
OD (MM) 18.821
Thickness (MM) 2.286
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2422

ID (MM) 12.776
OD (MM) 20.599
Thickness (MM) 1.549
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2423

ID (MM) 12.802
OD (MM) 17.45
Thickness (MM) 0.813
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2424

ID (MM) 12.878
OD (MM) 18.644
Thickness (MM) 1.6
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2425

ID (MM) 12.929
OD (MM) 25.349
Thickness (MM) 0.508
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2426

ID (MM) 12.954
OD (MM) 18.745
Thickness (MM) 1.27
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2427

ID (MM) 13.005
OD (MM) 16.764
Thickness (MM) 0.813
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2428

ID (MM) 13.005
OD (MM) 23.978
Thickness (MM) 2.362
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2429

ID (MM) 13.03
OD (MM) 18.771
Thickness (MM) 1.27
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2430

ID (MM) 13.056
OD (MM) 17.45
Thickness (MM) 0.787
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2431

ID (MM) 13.081
OD (MM) 20.549
Thickness (MM) 0.813
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2432

ID (MM) 13.106
OD (MM) 18.974
Thickness (MM) 1.575
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2433

ID (MM) 13.183
OD (MM) 19.025
Thickness (MM) 0.813
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2434

ID (MM) 13.183
OD (MM) 19.05
Thickness (MM) 0.813
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2435

ID (MM) 13.183
OD (MM) 20.549
Thickness (MM) 0.813
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2436

ID (MM) 13.183
OD (MM) 20.574
Thickness (MM) 2.362
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2437

ID (MM) 13.208
OD (MM) 19.05
Thickness (MM) 1.575
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2438

ID (MM) 13.208
OD (MM) 20.599
Thickness (MM) 0.813
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

175-2439

ID (MM) 13.335
OD (MM) 18.034
Thickness (MM) 1.575
Material Copper
ID MM TOL 0.127
OD MM TOL 0.127
Quantity