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

650-6120-064

ID 0.267
OD 0.735
Thickness 0.064
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6121-047

ID 0.378
OD 0.75
Thickness 0.047
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6122-117

ID 0.335
OD 0.785
Thickness 0.117
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6123-048

ID 0.199
OD 0.983
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6124-080

ID 0.439
OD 0.999
Thickness 0.08
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6125-062

ID 0.279
OD 1.001
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6126-059

ID 0.208
OD 1.126
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6127-116

ID 0.701
OD 1.337
Thickness 0.116
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6128-116

ID 1.001
OD 1.559
Thickness 0.116
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6129-121

ID 1.003
OD 1.747
Thickness 0.121
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-613-031

ID 0.144
OD 0.312
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6130-095

ID 0.441
OD 1.75
Thickness 0.095
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6131-075

ID 0.441
OD 1.75
Thickness 0.075
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6132-115

ID 0.752
OD 1.966
Thickness 0.115
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6133-118

ID 0.41
OD 2.0
Thickness 0.118
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6134-060

ID 1.128
OD 2.118
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6135-140

ID 0.709
OD 1.747
Thickness 0.14
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6136-140

ID 0.692
OD 1.748
Thickness 0.14
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6137-045

ID 0.191
OD 0.459
Thickness 0.045
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6138-048

ID 0.253
OD 0.563
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6139-121

ID 0.407
OD 0.874
Thickness 0.121
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-614-028

ID 0.144
OD 0.314
Thickness 0.028
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6140-061

ID 0.887
OD 1.023
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6141-073

ID 0.337
OD 1.378
Thickness 0.073
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6142-008

ID 0.403
OD 0.598
Thickness 0.008
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6143-048

ID 0.207
OD 0.625
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6144-044

ID 0.172
OD 0.627
Thickness 0.044
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6145-055

ID 0.316
OD 0.738
Thickness 0.055
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6146-010

ID 0.635
OD 0.776
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6147-118

ID 0.401
OD 0.78
Thickness 0.118
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6148-061

ID 0.377
OD 0.879
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6149-119

ID 0.345
OD 0.938
Thickness 0.119
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-615-030

ID 0.144
OD 0.322
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6150-024

ID 0.782
OD 1.003
Thickness 0.024
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6151-048

ID 0.753
OD 1.128
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6152-179

ID 0.46
OD 1.375
Thickness 0.179
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6153-074

ID 0.459
OD 1.38
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6154-117

ID 0.433
OD 1.524
Thickness 0.117
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6155-247

ID 0.549
OD 2.0
Thickness 0.247
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6156-122

ID 0.785
OD 2.001
Thickness 0.122
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6157-149

ID 1.313
OD 2.248
Thickness 0.149
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6158-029

ID 0.127
OD 0.23
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6159-032

ID 0.135
OD 0.376
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-616-040

ID 0.144
OD 0.346
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6160-117

ID 0.171
OD 0.468
Thickness 0.117
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6161-029

ID 0.172
OD 0.501
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6162-020

ID 0.396
OD 0.628
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6163-114

ID 0.333
OD 0.629
Thickness 0.114
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6164-040

ID 0.318
OD 0.63
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6165-062

ID 0.252
OD 0.701
Thickness 0.062
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.