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

650-5101-036

ID 1.0
OD 1.182
Thickness 0.036
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5102-005

ID 1.0
OD 1.376
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5103-095

ID 1.0
OD 4.0
Thickness 0.095
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5104-031

ID 1.001
OD 1.129
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5105-003

ID 1.001
OD 1.375
Thickness 0.003
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5106-051

ID 1.001
OD 1.714
Thickness 0.051
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5107-046

ID 1.002
OD 1.12
Thickness 0.046
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5108-038

ID 1.002
OD 1.187
Thickness 0.038
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5109-005

ID 1.002
OD 1.498
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-511-060

ID 0.133
OD 0.255
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5110-052

ID 1.002
OD 1.716
Thickness 0.052
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5111-058

ID 1.002
OD 1.935
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5112-029

ID 1.003
OD 1.315
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5113-020

ID 1.003
OD 1.372
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5114-043

ID 1.003
OD 1.42
Thickness 0.043
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5115-050

ID 1.003
OD 1.499
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5116-032

ID 1.003
OD 1.5
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5117-028

ID 1.003
OD 1.627
Thickness 0.028
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5118-121

ID 1.003
OD 2.0
Thickness 0.121
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5119-125

ID 1.003
OD 2.035
Thickness 0.125
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-512-020

ID 0.133
OD 0.272
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5120-125

ID 1.003
OD 2.244
Thickness 0.125
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5121-032

ID 1.004
OD 1.229
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5122-010

ID 1.004
OD 1.235
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5123-122

ID 1.004
OD 1.373
Thickness 0.122
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5124-049

ID 1.004
OD 1.496
Thickness 0.049
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5125-017

ID 1.004
OD 1.5
Thickness 0.017
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5126-032

ID 1.004
OD 1.502
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5127-196

ID 1.004
OD 1.558
Thickness 0.196
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5128-117

ID 1.004
OD 1.809
Thickness 0.117
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5129-130

ID 1.004
OD 1.875
Thickness 0.13
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-513-025

ID 0.133
OD 0.285
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5130-005

ID 1.005
OD 1.236
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5131-015

ID 1.005
OD 1.5
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5132-076

ID 1.005
OD 1.935
Thickness 0.076
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5133-113

ID 1.006
OD 1.5
Thickness 0.113
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5134-114

ID 1.006
OD 1.998
Thickness 0.114
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5135-015

ID 1.007
OD 1.363
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5136-018

ID 1.009
OD 1.247
Thickness 0.018
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5137-029

ID 1.009
OD 1.5
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5138-010

ID 1.01
OD 1.5
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5139-063

ID 1.013
OD 1.303
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-514-025

ID 0.133
OD 0.311
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5140-021

ID 1.013
OD 1.317
Thickness 0.021
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5141-021

ID 1.013
OD 1.323
Thickness 0.021
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5142-010

ID 1.015
OD 1.092
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5143-059

ID 1.016
OD 1.627
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5144-118

ID 1.016
OD 1.749
Thickness 0.118
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5145-012

ID 1.017
OD 1.25
Thickness 0.012
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5146-032

ID 1.019
OD 1.312
Thickness 0.032
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.