Home | Round Flat Washers - Precision Stamped in Any Material

Round Flat Washers - Precision Stamped in Any Material

Round flat washers are fundamental components in fastener assemblies, providing load distribution, surface protection, and vibration resistance across virtually every industry. Superior Washer & Gasket Corp manufactures round flat washers in a comprehensive range of materials-including aluminum, brass, copper, stainless steel, carbon steel, nylon, PTFE, and specialty alloys-in standard and custom sizes to precise tolerances.

As an ISO 9001:2015 certified flat washer manufacturer, we maintain one of the largest inventories of round flat washers available from a domestic source. Whether you need standard washers by the thousand or special flat washers produced to your custom specifications, our washer manufacturing capabilities deliver fast, reliable solutions made in the U.S.A.

  • Round flat washers in metals, plastics, and specialty materials
  • Broad standard size inventory for fast delivery
  • Custom flat washers stamped to your specifications
  • ISO 9001:2015 certified quality management
  • Made in the U.S.A. with material certifications available
SKU ID OD Thickness Material ID TOL OD TOL Quantity

650-5762-0185

ID 0.318
OD 0.404
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5763-040

ID 0.205
OD 0.435
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5764-050

ID 0.191
OD 0.449
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5765-058

ID 0.333
OD 0.514
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5766-090

ID 0.318
OD 0.593
Thickness 0.09
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5767-034

ID 0.378
OD 0.616
Thickness 0.034
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5768-018

ID 0.469
OD 0.624
Thickness 0.018
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5769-062

ID 0.191
OD 0.627
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-577-031

ID 0.141
OD 0.437
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5770-002

ID 0.378
OD 0.627
Thickness 0.002
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5771-062

ID 0.441
OD 0.715
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5772-031

ID 0.172
OD 0.745
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5773-015

ID 0.404
OD 0.748
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5774-063

ID 0.382
OD 0.749
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5775-010

ID 0.142
OD 0.765
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5776-040

ID 0.594
OD 0.832
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5777-120

ID 0.438
OD 0.855
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5778-074

ID 0.346
OD 0.944
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5779-115

ID 0.514
OD 0.945
Thickness 0.115
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-578-020

ID 0.141
OD 0.496
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5780-092

ID 0.655
OD 1.117
Thickness 0.092
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5781-062

ID 0.767
OD 1.128
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5782-062

ID 0.319
OD 1.367
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5783-104

ID 0.565
OD 1.374
Thickness 0.104
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5784-074

ID 0.439
OD 1.375
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5785-061

ID 1.253
OD 1.999
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5786-010

ID 0.223
OD 0.33
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5787-030

ID 0.262
OD 0.433
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5788-014

ID 0.295
OD 0.499
Thickness 0.014
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5789-120

ID 0.266
OD 0.619
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-579-040

ID 0.141
OD 0.5
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5790-115

ID 0.408
OD 0.735
Thickness 0.115
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5791-031

ID 0.476
OD 0.75
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5792-116

ID 0.321
OD 0.754
Thickness 0.116
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5793-064

ID 0.389
OD 0.812
Thickness 0.064
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5794-050

ID 0.253
OD 0.873
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5795-071

ID 0.502
OD 1.001
Thickness 0.071
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5796-073

ID 0.349
OD 1.014
Thickness 0.073
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5797-181

ID 0.53
OD 1.138
Thickness 0.181
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5798-017

ID 0.503
OD 1.25
Thickness 0.017
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5799-150

ID 0.533
OD 1.498
Thickness 0.15
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-58-016

ID 0.081
OD 0.179
Thickness 0.016
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-580-040

ID 0.141
OD 0.562
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5800-104

ID 0.482
OD 1.733
Thickness 0.104
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5801-061

ID 0.41
OD 2.0
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5802-025

ID 0.141
OD 0.309
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5803-062

ID 0.152
OD 0.31
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5804-031

ID 0.143
OD 0.374
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5805-042

ID 0.22
OD 0.428
Thickness 0.042
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5806-030

ID 0.208
OD 0.441
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

Meeting Your Manufacturing, Material, And Quality Requirements

Numerous factors affect the quality and long-term performance of flat washers. As a U.S.-based manufacturer and an ISO 9001:2015 certified company, we assure you that all parts we ship are manufactured domestically. We offer metal washers made from a diverse range of materials, including conventional options like copper stampings, aluminum washers, and stainless steel washers (which can include passivation). We also specialize in plastic washers and exotic materials like Inconel, Nylatron washers, and Monel. Additionally, we can quote a variety of platings including zinc, cad yellow, and black ox to suit your specific needs.