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

650-5371-059

ID 1.412
OD 1.998
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5372-003

ID 1.414
OD 1.558
Thickness 0.003
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5373-010

ID 1.422
OD 1.875
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5374-047

ID 1.433
OD 1.877
Thickness 0.047
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5375-005

ID 1.438
OD 2.5
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5376-096

ID 1.441
OD 2.034
Thickness 0.096
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5377-067

ID 1.465
OD 1.998
Thickness 0.067
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5378-063

ID 1.473
OD 2.0
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5379-014

ID 1.5
OD 1.999
Thickness 0.014
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-538-031

ID 0.138
OD 0.246
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5380-061

ID 1.5
OD 2.125
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5381-005

ID 1.5
OD 2.375
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5382-250

ID 1.5
OD 4.75
Thickness 0.25
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5383-038

ID 1.501
OD 1.968
Thickness 0.038
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5384-119

ID 1.503
OD 2.124
Thickness 0.119
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5385-050

ID 1.503
OD 2.128
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5386-059

ID 1.503
OD 2.75
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5387-062

ID 1.504
OD 1.874
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5388-064

ID 1.508
OD 1.685
Thickness 0.064
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5389-018

ID 1.508
OD 1.738
Thickness 0.018
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-539-020

ID 0.138
OD 0.25
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5390-030

ID 1.51
OD 2.0
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5391-021

ID 1.514
OD 2.251
Thickness 0.021
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5392-010

ID 1.516
OD 2.0
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5393-059

ID 1.517
OD 2.25
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5394-122

ID 1.531
OD 2.125
Thickness 0.122
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5395-059

ID 1.531
OD 3.747
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5396-116

ID 1.534
OD 2.747
Thickness 0.116
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5397-128

ID 1.535
OD 2.5
Thickness 0.128
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5398-099

ID 1.536
OD 2.252
Thickness 0.099
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5399-150

ID 1.565
OD 2.685
Thickness 0.15
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-54-025

ID 0.079
OD 0.152
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-540-025

ID 0.138
OD 0.312
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5400-041

ID 1.595
OD 2.362
Thickness 0.041
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5401-032

ID 1.6
OD 2.0
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5402-015

ID 1.625
OD 2.002
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5403-020

ID 1.625
OD 2.005
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5404-090

ID 1.626
OD 2.996
Thickness 0.09
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5405-020

ID 1.627
OD 2.001
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5406-109

ID 1.627
OD 3.747
Thickness 0.109
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5407-015

ID 1.628
OD 1.935
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5408-115

ID 1.629
OD 2.875
Thickness 0.115
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5409-109

ID 1.629
OD 3.242
Thickness 0.109
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-541-030

ID 0.138
OD 0.349
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5410-010

ID 1.63
OD 2.002
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5411-060

ID 1.661
OD 1.873
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5412-065

ID 1.663
OD 2.344
Thickness 0.065
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5413-061

ID 1.664
OD 2.376
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5414-061

ID 1.69
OD 2.343
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5415-033

ID 1.706
OD 2.561
Thickness 0.033
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.