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

650-5942-045

ID 0.159
OD 0.501
Thickness 0.045
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5943-061

ID 0.377
OD 0.563
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5944-047

ID 0.333
OD 0.626
Thickness 0.047
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5945-061

ID 0.335
OD 0.701
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5946-076

ID 0.378
OD 0.751
Thickness 0.076
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5947-063

ID 0.431
OD 0.823
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5948-061

ID 0.199
OD 0.876
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5949-040

ID 0.513
OD 0.95
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-595-032

ID 0.142
OD 1.0
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5950-058

ID 0.658
OD 1.001
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5951-148

ID 0.347
OD 1.002
Thickness 0.148
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5952-059

ID 0.477
OD 1.124
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5953-102

ID 0.513
OD 1.248
Thickness 0.102
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5954-043

ID 0.284
OD 1.249
Thickness 0.043
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5955-126

ID 0.332
OD 1.249
Thickness 0.126
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5956-120

ID 0.813
OD 1.465
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5957-119

ID 0.513
OD 2.498
Thickness 0.119
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5958-022

ID 0.126
OD 0.25
Thickness 0.022
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5959-032

ID 0.162
OD 0.373
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-596-030

ID 0.143
OD 0.217
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5960-034

ID 0.108
OD 0.466
Thickness 0.034
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5961-010

ID 0.375
OD 0.562
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5962-008

ID 0.404
OD 0.597
Thickness 0.008
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5963-036

ID 0.376
OD 0.616
Thickness 0.036
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5964-020

ID 0.375
OD 0.625
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5965-101

ID 0.345
OD 0.685
Thickness 0.101
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5966-025

ID 0.5
OD 0.857
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5967-040

ID 0.507
OD 0.876
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5968-120

ID 0.286
OD 0.95
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5969-114

ID 0.349
OD 0.973
Thickness 0.114
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-597-025

ID 0.143
OD 0.239
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5970-094

ID 0.15
OD 1.0
Thickness 0.094
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5971-074

ID 0.349
OD 1.047
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5972-062

ID 0.315
OD 1.124
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5973-114

ID 0.78
OD 1.31
Thickness 0.114
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5974-005

ID 1.183
OD 1.366
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5975-038

ID 0.326
OD 1.399
Thickness 0.038
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5976-107

ID 0.815
OD 1.499
Thickness 0.107
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5977-074

ID 0.436
OD 1.749
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5978-062

ID 0.414
OD 2.0
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5979-062

ID 0.502
OD 2.5
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-598-010

ID 0.143
OD 0.298
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5980-164

ID 1.275
OD 2.75
Thickness 0.164
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5981-061

ID 0.133
OD 0.375
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5982-060

ID 0.237
OD 0.625
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5983-020

ID 0.0
OD 0.688
Thickness 0.02
Material Steel Low Carbon
ID TOL
OD TOL +-.005
Quantity

650-5984-064

ID 0.262
OD 0.751
Thickness 0.064
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5985-093

ID 0.312
OD 0.752
Thickness 0.093
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5986-120

ID 0.422
OD 0.845
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5987-061

ID 0.188
OD 0.875
Thickness 0.061
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.