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

650-5601-040

ID 0.54
OD 0.941
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5602-100

ID 0.419
OD 1.101
Thickness 0.1
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5603-120

ID 0.332
OD 1.185
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5604-075

ID 0.658
OD 1.252
Thickness 0.075
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5605-078

ID 1.013
OD 1.444
Thickness 0.078
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5606-060

ID 1.628
OD 1.874
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5607-156

ID 0.996
OD 1.562
Thickness 0.156
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5608-140

ID 0.814
OD 1.751
Thickness 0.14
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-561-031

ID 0.14
OD 0.282
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5610-025

ID 0.081
OD 0.146
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5611-034

ID 0.236
OD 0.527
Thickness 0.034
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5612-008

ID 0.402
OD 0.591
Thickness 0.008
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5613-131

ID 0.393
OD 0.848
Thickness 0.131
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5614-120

ID 0.44
OD 0.875
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5615-040

ID 0.669
OD 0.903
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5616-050

ID 0.672
OD 0.935
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5617-074

ID 1.502
OD 2.114
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5618-120

ID 0.534
OD 2.19
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5619-040

ID 2.503
OD 3.201
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-562-030

ID 0.14
OD 0.312
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5620-120

ID 0.534
OD 3.255
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5621-026

ID 0.077
OD 0.348
Thickness 0.026
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5622-025

ID 0.173
OD 0.354
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5623-060

ID 0.143
OD 0.375
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5624-060

ID 0.195
OD 0.733
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5625-061

ID 0.0
OD 0.744
Thickness 0.061
Material Steel Low Carbon
ID TOL
OD TOL +-.005
Quantity

650-5626-101

ID 0.416
OD 0.826
Thickness 0.101
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5627-104

ID 0.33
OD 1.001
Thickness 0.104
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5628-125

ID 0.758
OD 1.124
Thickness 0.125
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5629-105

ID 0.883
OD 1.467
Thickness 0.105
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-563-025

ID 0.14
OD 0.342
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5630-075

ID 0.392
OD 1.498
Thickness 0.075
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5631-130

ID 0.685
OD 1.716
Thickness 0.13
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5632-175

ID 0.689
OD 2.499
Thickness 0.175
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-564-015

ID 0.14
OD 0.372
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-565-040

ID 0.14
OD 0.407
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-566-031

ID 0.14
OD 0.439
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5660-030

ID 0.154
OD 0.309
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5661-060

ID 0.129
OD 0.376
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5662-062

ID 0.279
OD 0.48
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5663-061

ID 0.276
OD 0.484
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5664-046

ID 0.336
OD 0.493
Thickness 0.046
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5665-046

ID 0.254
OD 0.623
Thickness 0.046
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5666-087

ID 0.344
OD 0.685
Thickness 0.087
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5667-025

ID 0.501
OD 0.855
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5668-075

ID 0.331
OD 0.983
Thickness 0.075
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5669-071

ID 0.643
OD 1.001
Thickness 0.071
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-567-060

ID 0.14
OD 0.625
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5670-130

ID 0.282
OD 1.125
Thickness 0.13
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5671-040

ID 0.198
OD 1.183
Thickness 0.04
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.