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

650-5147-130

ID 1.019
OD 1.5
Thickness 0.13
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5148-076

ID 1.019
OD 1.51
Thickness 0.076
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5149-130

ID 1.019
OD 1.875
Thickness 0.13
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-515-030

ID 0.133
OD 0.344
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5150-062

ID 1.019
OD 1.999
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5151-058

ID 1.02
OD 1.256
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5152-096

ID 1.022
OD 1.749
Thickness 0.096
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5153-123

ID 1.022
OD 1.858
Thickness 0.123
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5154-060

ID 1.023
OD 1.622
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5155-133

ID 1.024
OD 1.499
Thickness 0.133
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5156-021

ID 1.028
OD 1.5
Thickness 0.021
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5157-063

ID 1.032
OD 1.501
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5158-009

ID 1.034
OD 1.376
Thickness 0.009
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5159-120

ID 1.034
OD 1.499
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-516-025

ID 0.133
OD 0.392
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5160-054

ID 1.034
OD 1.998
Thickness 0.054
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5161-188

ID 1.034
OD 2.248
Thickness 0.188
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5162-024

ID 1.035
OD 1.496
Thickness 0.024
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5163-088

ID 1.035
OD 1.5
Thickness 0.088
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5164-064

ID 1.035
OD 1.748
Thickness 0.064
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5165-070

ID 1.035
OD 1.749
Thickness 0.07
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5166-033

ID 1.035
OD 1.876
Thickness 0.033
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5167-236

ID 1.035
OD 2.0
Thickness 0.236
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5168-117

ID 1.036
OD 1.5
Thickness 0.117
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5169-101

ID 1.036
OD 1.749
Thickness 0.101
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-517-005

ID 0.134
OD 0.247
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5170-033

ID 1.045
OD 1.868
Thickness 0.033
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5171-113

ID 1.051
OD 1.607
Thickness 0.113
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5172-047

ID 1.054
OD 1.562
Thickness 0.047
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5173-180

ID 1.056
OD 2.495
Thickness 0.18
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5174-073

ID 1.057
OD 1.373
Thickness 0.073
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5175-059

ID 1.06
OD 1.561
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5176-124

ID 1.06
OD 2.005
Thickness 0.124
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5177-010

ID 1.061
OD 1.35
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5178-042

ID 1.062
OD 1.372
Thickness 0.042
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5179-094

ID 1.062
OD 1.5
Thickness 0.094
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-518-031

ID 0.134
OD 0.264
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5180-006

ID 1.062
OD 1.75
Thickness 0.006
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5181-063

ID 1.062
OD 1.811
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5182-058

ID 1.063
OD 1.179
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5183-094

ID 1.063
OD 1.75
Thickness 0.094
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5184-169

ID 1.063
OD 2.502
Thickness 0.169
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5185-062

ID 1.064
OD 1.439
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5186-060

ID 1.064
OD 1.506
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5187-030

ID 1.064
OD 1.812
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5188-135

ID 1.064
OD 2.485
Thickness 0.135
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5189-063

ID 1.065
OD 1.437
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-519-025

ID 0.134
OD 0.281
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5190-029

ID 1.065
OD 1.469
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5191-125

ID 1.065
OD 1.496
Thickness 0.125
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.