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

650-871-034

ID 0.163
OD 0.231
Thickness 0.034
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-872-014

ID 0.163
OD 0.265
Thickness 0.014
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-873-010

ID 0.163
OD 0.281
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-874-025

ID 0.163
OD 0.329
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-875-025

ID 0.163
OD 0.369
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-876-020

ID 0.163
OD 0.372
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-877-045

ID 0.163
OD 0.385
Thickness 0.045
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-878-062

ID 0.163
OD 0.5
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-879-072

ID 0.163
OD 0.718
Thickness 0.072
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-88-012

ID 0.092
OD 0.405
Thickness 0.012
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-880-030

ID 0.164
OD 0.249
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-881-010

ID 0.164
OD 0.31
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-882-030

ID 0.164
OD 0.532
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-883-049

ID 0.165
OD 0.276
Thickness 0.049
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-884-031

ID 0.165
OD 0.389
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-885-035

ID 0.165
OD 0.43
Thickness 0.035
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-886-062

ID 0.165
OD 0.435
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-887-046

ID 0.165
OD 0.475
Thickness 0.046
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-888-015

ID 0.166
OD 0.309
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-889-030

ID 0.166
OD 0.313
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-89-020

ID 0.093
OD 0.148
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-890-035

ID 0.166
OD 0.343
Thickness 0.035
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-891-015

ID 0.166
OD 0.376
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-892-032

ID 0.166
OD 0.38
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-893-025

ID 0.166
OD 0.388
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-894-048

ID 0.166
OD 0.5
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-895-048

ID 0.166
OD 0.709
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-896-125

ID 0.166
OD 0.749
Thickness 0.125
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-897-025

ID 0.167
OD 0.256
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-898-027

ID 0.167
OD 0.269
Thickness 0.027
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-899-040

ID 0.167
OD 0.312
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-90-020

ID 0.093
OD 0.187
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-900-046

ID 0.167
OD 0.328
Thickness 0.046
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-901-016

ID 0.167
OD 0.368
Thickness 0.016
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-902-038

ID 0.167
OD 0.383
Thickness 0.038
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-903-015

ID 0.167
OD 0.437
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-904-031

ID 0.167
OD 0.453
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-905-028

ID 0.167
OD 0.498
Thickness 0.028
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-906-015

ID 0.167
OD 0.514
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-907-030

ID 0.167
OD 0.868
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-908-030

ID 0.168
OD 0.282
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-909-063

ID 0.168
OD 0.391
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-91-020

ID 0.093
OD 0.21
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-910-060

ID 0.168
OD 0.484
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-911-033

ID 0.168
OD 0.509
Thickness 0.033
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-912-037

ID 0.168
OD 0.511
Thickness 0.037
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-913-025

ID 0.168
OD 0.624
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-914-010

ID 0.169
OD 0.215
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-915-030

ID 0.169
OD 0.276
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-916-045

ID 0.169
OD 0.295
Thickness 0.045
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.