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

650-5416-028

ID 1.752
OD 1.994
Thickness 0.028
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5417-113

ID 1.754
OD 2.996
Thickness 0.113
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5418-030

ID 1.78
OD 2.124
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5419-010

ID 1.781
OD 1.985
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-542-060

ID 0.138
OD 0.377
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5420-061

ID 1.782
OD 2.374
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5421-058

ID 1.786
OD 2.329
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5422-034

ID 1.798
OD 2.122
Thickness 0.034
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5423-032

ID 1.815
OD 2.248
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5424-032

ID 1.818
OD 2.248
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5425-073

ID 1.82
OD 2.021
Thickness 0.073
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5426-021

ID 1.844
OD 2.266
Thickness 0.021
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5427-187

ID 1.875
OD 4.0
Thickness 0.187
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5428-010

ID 1.876
OD 2.876
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5429-174

ID 1.878
OD 2.249
Thickness 0.174
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-543-027

ID 0.138
OD 0.386
Thickness 0.027
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5430-025

ID 1.885
OD 2.871
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5431-059

ID 1.91
OD 2.501
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5432-058

ID 1.937
OD 2.408
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5433-010

ID 1.985
OD 2.42
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5434-033

ID 1.998
OD 2.426
Thickness 0.033
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5435-127

ID 1.998
OD 2.998
Thickness 0.127
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5436-047

ID 1.999
OD 2.746
Thickness 0.047
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5437-030

ID 2.0
OD 2.425
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5438-007

ID 2.003
OD 2.425
Thickness 0.007
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5439-003

ID 2.018
OD 2.432
Thickness 0.003
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-544-031

ID 0.138
OD 0.434
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5440-060

ID 2.029
OD 2.752
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5441-062

ID 2.036
OD 2.751
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5442-060

ID 2.06
OD 3.045
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5443-145

ID 2.09
OD 2.748
Thickness 0.145
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5444-010

ID 2.172
OD 2.429
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5445-030

ID 2.204
OD 3.0
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5446-032

ID 2.207
OD 2.999
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5447-026

ID 2.255
OD 2.434
Thickness 0.026
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5448-048

ID 2.316
OD 2.749
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5449-030

ID 2.426
OD 3.496
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-545-010

ID 0.138
OD 0.623
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5450-124

ID 2.472
OD 3.79
Thickness 0.124
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5451-010

ID 2.559
OD 2.8
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5452-005

ID 2.56
OD 2.807
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5453-061

ID 2.561
OD 3.247
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5454-062

ID 2.592
OD 3.75
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5455-007

ID 2.781
OD 3.125
Thickness 0.007
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5456-005

ID 2.782
OD 3.127
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5457-010

ID 2.783
OD 3.118
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5458-010

ID 2.953
OD 3.297
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5459-005

ID 3.155
OD 3.485
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-546-062

ID 0.138
OD 0.751
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5460-010

ID 3.165
OD 3.5
Thickness 0.01
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.