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

650-5852-048

ID 0.255
OD 0.717
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5853-062

ID 0.17
OD 0.745
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5854-088

ID 0.393
OD 0.749
Thickness 0.088
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5855-047

ID 0.202
OD 0.75
Thickness 0.047
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5856-179

ID 0.33
OD 0.875
Thickness 0.179
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5857-015

ID 0.536
OD 1.0
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5858-104

ID 0.407
OD 1.247
Thickness 0.104
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5859-078

ID 0.31
OD 1.273
Thickness 0.078
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-586-030

ID 0.142
OD 0.267
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5860-090

ID 0.884
OD 1.416
Thickness 0.09
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5861-038

ID 1.025
OD 1.453
Thickness 0.038
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5862-178

ID 0.563
OD 1.499
Thickness 0.178
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5863-040

ID 1.128
OD 1.501
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5864-116

ID 1.878
OD 3.495
Thickness 0.116
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5865-031

ID 0.117
OD 0.22
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5866-040

ID 0.127
OD 0.315
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5867-040

ID 0.319
OD 0.444
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5868-062

ID 0.276
OD 0.48
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5869-077

ID 0.285
OD 0.578
Thickness 0.077
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-587-010

ID 0.142
OD 0.31
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5870-020

ID 0.376
OD 0.624
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5871-060

ID 0.392
OD 0.629
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5872-074

ID 0.419
OD 0.657
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5873-075

ID 0.534
OD 0.741
Thickness 0.075
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5874-003

ID 0.0
OD 0.779
Thickness 0.003
Material Steel Low Carbon
ID TOL
OD TOL +-.005
Quantity

650-5875-033

ID 0.481
OD 0.81
Thickness 0.033
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5876-059

ID 0.33
OD 0.875
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5877-075

ID 0.534
OD 0.9
Thickness 0.075
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5878-075

ID 0.285
OD 0.931
Thickness 0.075
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5879-076

ID 0.332
OD 0.933
Thickness 0.076
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-588-060

ID 0.142
OD 0.363
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5880-039

ID 0.564
OD 1.001
Thickness 0.039
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5881-119

ID 0.51
OD 1.002
Thickness 0.119
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5882-083

ID 0.434
OD 1.092
Thickness 0.083
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5883-074

ID 0.418
OD 1.104
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5884-074

ID 0.536
OD 1.158
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5885-010

ID 0.562
OD 1.188
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5886-008

ID 0.765
OD 1.375
Thickness 0.008
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5887-047

ID 1.032
OD 1.502
Thickness 0.047
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5888-098

ID 0.674
OD 1.754
Thickness 0.098
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5889-064

ID 0.533
OD 1.755
Thickness 0.064
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-589-015

ID 0.142
OD 0.375
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5890-061

ID 0.347
OD 1.996
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5891-058

ID 1.442
OD 2.421
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5892-061

ID 1.618
OD 2.5
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5893-060

ID 1.687
OD 2.872
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5894-059

ID 0.257
OD 0.464
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5895-045

ID 0.269
OD 0.5
Thickness 0.045
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5896-063

ID 0.329
OD 0.5
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5897-026

ID 0.392
OD 0.501
Thickness 0.026
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.