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

650-5988-061

ID 0.518
OD 0.875
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5989-020

ID 0.0
OD 0.968
Thickness 0.02
Material Steel Low Carbon
ID TOL
OD TOL +-.005
Quantity

650-599-031

ID 0.143
OD 0.312
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5990-101

ID 0.533
OD 0.996
Thickness 0.104
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5991-030

ID 0.512
OD 1.06
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5992-029

ID 0.643
OD 1.119
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5993-080

ID 0.333
OD 1.181
Thickness 0.08
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5994-048

ID 0.565
OD 1.5
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5995-048

ID 0.878
OD 1.503
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5996-174

ID 1.035
OD 1.998
Thickness 0.174
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5997-177

ID 0.94
OD 2.249
Thickness 0.177
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5998-146

ID 1.19
OD 2.249
Thickness 0.146
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-60-040

ID 0.081
OD 0.249
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-600-031

ID 0.143
OD 0.32
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-601-040

ID 0.143
OD 0.341
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-602-016

ID 0.143
OD 0.37
Thickness 0.016
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-603-060

ID 0.143
OD 0.499
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-604-010

ID 0.143
OD 0.515
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6047-030

ID 0.205
OD 0.625
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6048-015

ID 0.508
OD 0.751
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6049-016

ID 0.258
OD 0.78
Thickness 0.016
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-605-036

ID 0.143
OD 0.627
Thickness 0.036
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6050-043

ID 0.579
OD 0.781
Thickness 0.043
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6051-010

ID 0.0
OD 0.844
Thickness 0.01
Material Steel Low Carbon
ID TOL
OD TOL +-.005
Quantity

650-6052-064

ID 0.418
OD 0.874
Thickness 0.064
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6053-046

ID 0.266
OD 0.468
Thickness 0.046
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6054-039

ID 0.256
OD 0.563
Thickness 0.039
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6055-117

ID 0.32
OD 0.625
Thickness 0.117
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6056-045

ID 0.253
OD 0.626
Thickness 0.045
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6057-002

ID 0.395
OD 0.632
Thickness 0.002
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6058-057

ID 0.377
OD 0.658
Thickness 0.057
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6059-040

ID 0.416
OD 0.702
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-606-048

ID 0.143
OD 0.999
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6060-118

ID 0.253
OD 0.998
Thickness 0.118
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6061-030

ID 0.443
OD 0.999
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6062-094

ID 0.331
OD 1.004
Thickness 0.094
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6063-059

ID 0.274
OD 1.03
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6064-120

ID 0.282
OD 1.503
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6065-030

ID 0.902
OD 1.532
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6066-176

ID 0.756
OD 1.964
Thickness 0.176
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6067-116

ID 0.533
OD 1.999
Thickness 0.116
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6068-116

ID 1.565
OD 2.372
Thickness 0.116
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6069-029

ID 0.197
OD 0.355
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-607-015

ID 0.144
OD 0.235
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6070-028

ID 0.175
OD 0.385
Thickness 0.028
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6071-061

ID 0.257
OD 0.42
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6072-062

ID 0.258
OD 0.422
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6073-029

ID 0.205
OD 0.436
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6074-061

ID 0.256
OD 0.436
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6075-051

ID 0.189
OD 0.437
Thickness 0.051
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.