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

650-5807-031

ID 0.298
OD 0.476
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5808-047

ID 0.19
OD 0.749
Thickness 0.047
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5809-077

ID 0.375
OD 0.881
Thickness 0.077
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-581-031

ID 0.141
OD 1.003
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5810-100

ID 0.534
OD 1.0
Thickness 0.1
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5811-117

ID 0.688
OD 1.062
Thickness 0.117
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5812-030

ID 1.002
OD 1.503
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5813-103

ID 0.393
OD 1.75
Thickness 0.103
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5814-048

ID 1.395
OD 2.124
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5815-021

ID 0.094
OD 0.251
Thickness 0.021
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5816-033

ID 0.197
OD 0.376
Thickness 0.033
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5817-075

ID 0.179
OD 0.5
Thickness 0.075
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5818-016

ID 0.273
OD 0.62
Thickness 0.016
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5819-023

ID 0.0
OD 0.656
Thickness 0.023
Material Steel Low Carbon
ID TOL
OD TOL +-.005
Quantity

650-582-016

ID 0.142
OD 0.218
Thickness 0.016
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5820-067

ID 0.394
OD 0.686
Thickness 0.067
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5821-016

ID 0.477
OD 0.735
Thickness 0.016
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5822-163

ID 0.268
OD 0.749
Thickness 0.163
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5823-037

ID 0.336
OD 0.75
Thickness 0.037
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5824-032

ID 0.386
OD 0.75
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5825-059

ID 0.519
OD 0.803
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5826-063

ID 0.439
OD 0.814
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5827-121

ID 0.381
OD 0.869
Thickness 0.121
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5828-078

ID 0.642
OD 1.0
Thickness 0.078
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5829-121

ID 0.892
OD 1.746
Thickness 0.121
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-583-030

ID 0.142
OD 0.247
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5830-120

ID 1.07
OD 2.25
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5831-030

ID 0.32
OD 0.43
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5832-050

ID 0.207
OD 0.566
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5833-031

ID 0.534
OD 0.751
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5834-010

ID 0.469
OD 0.864
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5835-118

ID 0.515
OD 1.09
Thickness 0.118
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5836-111

ID 0.41
OD 1.373
Thickness 0.111
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5837-062

ID 0.893
OD 1.375
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5838-120

ID 0.414
OD 2.497
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5839-016

ID 0.103
OD 0.189
Thickness 0.016
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-584-025

ID 0.142
OD 0.251
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5840-020

ID 0.167
OD 0.283
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5841-029

ID 0.26
OD 0.364
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5842-036

ID 0.195
OD 0.437
Thickness 0.036
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5843-060

ID 0.328
OD 0.467
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5844-051

ID 0.191
OD 0.476
Thickness 0.051
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5845-059

ID 0.265
OD 0.501
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5846-060

ID 0.33
OD 0.528
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5847-038

ID 0.324
OD 0.616
Thickness 0.038
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5848-031

ID 0.141
OD 0.625
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5849-075

ID 0.348
OD 0.625
Thickness 0.075
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-585-030

ID 0.142
OD 0.259
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5850-057

ID 0.192
OD 0.688
Thickness 0.057
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5851-050

ID 0.189
OD 0.689
Thickness 0.05
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.