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

650-5237-060

ID 1.138
OD 2.188
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5238-060

ID 1.139
OD 1.875
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5239-022

ID 1.14
OD 1.251
Thickness 0.022
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-524-025

ID 0.134
OD 0.391
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5240-175

ID 1.14
OD 2.555
Thickness 0.175
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5241-157

ID 1.142
OD 2.497
Thickness 0.157
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5242-090

ID 1.143
OD 1.502
Thickness 0.09
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5243-060

ID 1.143
OD 1.747
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5244-010

ID 1.145
OD 1.327
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5245-092

ID 1.145
OD 1.746
Thickness 0.092
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5246-088

ID 1.145
OD 2.201
Thickness 0.088
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5247-015

ID 1.153
OD 1.627
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5248-120

ID 1.156
OD 1.999
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5249-094

ID 1.158
OD 1.497
Thickness 0.094
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-525-015

ID 0.134
OD 0.4
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5250-123

ID 1.158
OD 1.876
Thickness 0.123
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5251-031

ID 1.16
OD 1.625
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5252-063

ID 1.162
OD 1.378
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5253-051

ID 1.164
OD 1.748
Thickness 0.051
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5254-017

ID 1.168
OD 2.371
Thickness 0.017
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5255-031

ID 1.169
OD 2.374
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5256-060

ID 1.178
OD 1.5
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5257-011

ID 1.183
OD 1.5
Thickness 0.011
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5258-015

ID 1.186
OD 1.304
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5259-010

ID 1.187
OD 1.36
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-526-040

ID 0.134
OD 1.12
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5260-119

ID 1.188
OD 1.746
Thickness 0.119
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5261-030

ID 1.189
OD 1.5
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5262-059

ID 1.189
OD 1.622
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5263-005

ID 1.19
OD 1.36
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5264-012

ID 1.19
OD 1.5
Thickness 0.012
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5264-029

ID 1.19
OD 1.5
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5265-120

ID 1.19
OD 1.748
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5266-015

ID 1.191
OD 1.746
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5267-029

ID 1.192
OD 1.5
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5268-058

ID 1.192
OD 2.248
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5269-006

ID 1.193
OD 2.031
Thickness 0.006
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-527-030

ID 0.135
OD 0.239
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5270-114

ID 1.196
OD 2.001
Thickness 0.114
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5271-010

ID 1.198
OD 1.997
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5272-073

ID 1.2
OD 1.877
Thickness 0.073
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5273-010

ID 1.201
OD 1.367
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5274-059

ID 1.206
OD 2.5
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5275-044

ID 1.208
OD 2.249
Thickness 0.044
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5276-005

ID 1.21
OD 1.75
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5277-064

ID 1.213
OD 1.619
Thickness 0.064
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5278-060

ID 1.213
OD 1.677
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5279-016

ID 1.215
OD 1.56
Thickness 0.016
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-528-025

ID 0.135
OD 0.385
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5280-123

ID 1.218
OD 1.876
Thickness 0.123
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.