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

650-6256-040

ID 0.188
OD 0.425
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6257-031

ID 0.252
OD 0.438
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6258-034

ID 0.316
OD 0.441
Thickness 0.034
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6259-030

ID 0.329
OD 0.563
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-626-031

ID 0.144
OD 0.5
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6260-058

ID 0.219
OD 0.586
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6261-005

ID 0.376
OD 0.622
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6262-059

ID 0.249
OD 0.625
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6263-010

ID 0.489
OD 0.631
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6264-025

ID 0.531
OD 0.748
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6265-032

ID 0.5
OD 0.75
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6266-050

ID 0.39
OD 0.871
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6267-051

ID 0.258
OD 0.873
Thickness 0.051
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6268-057

ID 0.504
OD 0.877
Thickness 0.057
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6269-063

ID 0.439
OD 1.002
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-627-040

ID 0.144
OD 0.56
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6270-025

ID 0.798
OD 1.248
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6271-015

ID 0.811
OD 1.249
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6272-025

ID 0.811
OD 1.252
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6273-058

ID 0.311
OD 1.369
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6274-090

ID 0.442
OD 1.375
Thickness 0.09
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6275-063

ID 0.938
OD 1.378
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6276-120

ID 0.471
OD 1.502
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6277-063

ID 1.174
OD 1.579
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6278-004

ID 1.468
OD 1.845
Thickness 0.004
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6279-063

ID 0.533
OD 2.0
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-628-050

ID 0.144
OD 0.563
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6280-015

ID 1.881
OD 2.375
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6281-021

ID 0.15
OD 0.28
Thickness 0.021
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6282-030

ID 0.257
OD 0.382
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6283-020

ID 0.0
OD 0.572
Thickness 0.02
Material Steel Low Carbon
ID TOL
OD TOL +-.005
Quantity

650-6284-077

ID 0.323
OD 0.905
Thickness 0.077
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6285-074

ID 0.355
OD 0.987
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6286-076

ID 0.518
OD 0.999
Thickness 0.076
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6287-108

ID 0.533
OD 1.061
Thickness 0.108
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6288-078

ID 0.597
OD 1.156
Thickness 0.078
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6289-061

ID 0.886
OD 1.375
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-629-050

ID 0.144
OD 0.625
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6290-089

ID 0.261
OD 1.868
Thickness 0.089
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6291-061

ID 0.141
OD 0.375
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6292-036

ID 0.318
OD 0.433
Thickness 0.036
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6293-063

ID 0.533
OD 1.0
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6294-182

ID 0.408
OD 1.124
Thickness 0.182
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6295-245

ID 0.814
OD 1.747
Thickness 0.245
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6296-119

ID 0.751
OD 1.965
Thickness 0.119
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6297-020

ID 0.318
OD 0.552
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6298-020

ID 0.381
OD 0.561
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6299-062

ID 0.19
OD 0.626
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-63-020

ID 0.082
OD 0.243
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-630-032

ID 0.144
OD 0.652
Thickness 0.032
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.