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 Actions

220-59-010

ID 0.093
OD 0.265
Thickness 0.01
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-590-031

ID 1.062
OD 1.5
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-591-020

ID 1.125
OD 1.38
Thickness 0.02
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-592-025

ID 1.175
OD 1.5
Thickness 0.025
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-593-031

ID 1.19
OD 1.5
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-594-093

ID 1.281
OD 2.25
Thickness 0.093
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-596-031

ID 1.638
OD 1.875
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-597-062

ID 2.05
OD 2.5
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-598-010

ID 2.78
OD 3.5
Thickness 0.01
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-599-031

ID 4.442
OD 5.015
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-60-031

ID 0.093
OD 0.281
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-601-032

ID 0.17
OD 0.26
Thickness 0.032
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-602-031

ID 0.434
OD 0.673
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-603-040

ID 1.048
OD 1.344
Thickness 0.04
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-604-125

ID 0.505
OD 0.902
Thickness 0.125
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-605-032

ID 0.659
OD 1.222
Thickness 0.032
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-606-040

ID 0.174
OD 0.498
Thickness 0.04
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-607-025

ID 0.093
OD 0.238
Thickness 0.025
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-608-040

ID 0.087
OD 0.354
Thickness 0.04
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-609-020

ID 0.665
OD 1.5
Thickness 0.02
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-61-062

ID 0.093
OD 0.312
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-610-050

ID 0.267
OD 0.521
Thickness 0.05
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-611-093

ID 0.644
OD 1.38
Thickness 0.093
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-612-050

ID 0.382
OD 0.6
Thickness 0.05
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-613-064

ID 0.638
OD 1.245
Thickness 0.064
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-614-062

ID 0.121
OD 0.44
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-615-062

ID 0.342
OD 1.13
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-616-031

ID 0.371
OD 1.218
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-618-064

ID 0.282
OD 0.498
Thickness 0.064
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-619-020

ID 0.073
OD 0.155
Thickness 0.02
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-62-062

ID 0.093
OD 0.343
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-620-030

ID 0.228
OD 0.436
Thickness 0.03
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-621-016

ID 0.236
OD 0.646
Thickness 0.016
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-622-032

ID 0.378
OD 0.75
Thickness 0.032
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-623-025

ID 0.312
OD 0.875
Thickness 0.025
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-624-031

ID 0.14
OD 0.374
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-625-030

ID 0.196
OD 0.445
Thickness 0.03
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-626-031

ID 0.219
OD 0.437
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-627-031

ID 0.142
OD 0.273
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-628-032

ID 0.325
OD 0.463
Thickness 0.032
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-629-040

ID 1.345
OD 1.804
Thickness 0.04
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-63-062

ID 0.093
OD 0.375
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-630-030

ID 0.19
OD 0.313
Thickness 0.03
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-631-026

ID 0.147
OD 0.311
Thickness 0.026
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-632-030

ID 0.317
OD 0.75
Thickness 0.03
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-633-063

ID 0.246
OD 1.503
Thickness 0.063
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-634-032

ID 0.44
OD 0.535
Thickness 0.032
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-635-048

ID 0.259
OD 0.625
Thickness 0.048
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-636-063

ID 0.53
OD 0.749
Thickness 0.063
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-637-064

ID 1.508
OD 2.374
Thickness 0.064
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

Description

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.