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

650-917-050

ID 0.169
OD 0.315
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-918-015

ID 0.169
OD 0.375
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-919-040

ID 0.169
OD 0.438
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-92-025

ID 0.093
OD 0.215
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-920-061

ID 0.169
OD 0.535
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-921-030

ID 0.169
OD 0.61
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-922-058

ID 0.169
OD 0.623
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-923-025

ID 0.17
OD 0.27
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-924-048

ID 0.17
OD 0.275
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-925-060

ID 0.17
OD 0.311
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-926-030

ID 0.17
OD 0.314
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-927-031

ID 0.17
OD 0.344
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-928-042

ID 0.17
OD 0.374
Thickness 0.042
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-929-039

ID 0.17
OD 0.501
Thickness 0.039
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-93-003

ID 0.093
OD 0.22
Thickness 0.003
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-930-021

ID 0.17
OD 0.547
Thickness 0.021
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-931-045

ID 0.171
OD 0.276
Thickness 0.045
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-932-060

ID 0.171
OD 0.296
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-933-063

ID 0.171
OD 0.31
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-934-030

ID 0.171
OD 0.311
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-935-040

ID 0.171
OD 0.312
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-936-025

ID 0.171
OD 0.313
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-937-025

ID 0.171
OD 0.32
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-938-020

ID 0.171
OD 0.329
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-939-050

ID 0.171
OD 0.338
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-94-030

ID 0.093
OD 0.251
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-940-033

ID 0.171
OD 0.358
Thickness 0.033
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-941-047

ID 0.171
OD 0.369
Thickness 0.047
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-942-059

ID 0.171
OD 0.375
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-943-032

ID 0.171
OD 0.407
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-944-040

ID 0.171
OD 0.44
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-945-040

ID 0.171
OD 0.5
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-946-048

ID 0.171
OD 0.624
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-947-030

ID 0.172
OD 0.309
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-948-034

ID 0.172
OD 0.341
Thickness 0.034
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-949-035

ID 0.172
OD 0.346
Thickness 0.035
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-95-025

ID 0.093
OD 0.271
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-950-030

ID 0.172
OD 0.357
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-951-031

ID 0.172
OD 0.374
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-952-032

ID 0.172
OD 0.375
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-953-025

ID 0.172
OD 0.376
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-954-030

ID 0.172
OD 0.406
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-955-030

ID 0.172
OD 0.408
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-956-076

ID 0.172
OD 0.436
Thickness 0.076
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-957-093

ID 0.172
OD 0.46
Thickness 0.093
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-958-040

ID 0.172
OD 0.473
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-959-030

ID 0.172
OD 0.49
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-96-031

ID 0.093
OD 0.279
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-960-061

ID 0.172
OD 0.496
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-961-059

ID 0.172
OD 0.541
Thickness 0.059
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.