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

650-5326-123

ID 1.284
OD 2.248
Thickness 0.123
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5327-062

ID 1.284
OD 2.253
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5328-017

ID 1.285
OD 1.625
Thickness 0.017
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5329-063

ID 1.285
OD 2.251
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-533-022

ID 0.136
OD 0.322
Thickness 0.022
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5330-036

ID 1.286
OD 1.873
Thickness 0.036
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5331-030

ID 1.287
OD 1.75
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5332-044

ID 1.3
OD 1.556
Thickness 0.044
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5333-060

ID 1.315
OD 1.625
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5334-100

ID 1.315
OD 1.995
Thickness 0.1
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5335-152

ID 1.315
OD 3.0
Thickness 0.152
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5336-058

ID 1.316
OD 1.501
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5337-091

ID 1.316
OD 2.005
Thickness 0.091
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5338-150

ID 1.316
OD 2.745
Thickness 0.15
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5339-139

ID 1.316
OD 2.748
Thickness 0.139
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-534-034

ID 0.136
OD 0.35
Thickness 0.034
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5340-032

ID 1.319
OD 1.718
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5341-117

ID 1.32
OD 1.622
Thickness 0.117
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5342-074

ID 1.326
OD 1.874
Thickness 0.074
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5343-043

ID 1.353
OD 1.75
Thickness 0.043
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5344-033

ID 1.354
OD 1.737
Thickness 0.033
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5345-041

ID 1.355
OD 1.749
Thickness 0.041
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5346-059

ID 1.363
OD 1.813
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5347-028

ID 1.363
OD 1.835
Thickness 0.028
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5348-014

ID 1.372
OD 1.783
Thickness 0.014
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5349-090

ID 1.374
OD 2.624
Thickness 0.09
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-535-036

ID 0.136
OD 0.401
Thickness 0.036
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5350-060

ID 1.375
OD 1.748
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5351-152

ID 1.376
OD 2.748
Thickness 0.152
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5352-062

ID 1.377
OD 1.685
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5353-035

ID 1.377
OD 1.75
Thickness 0.035
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5354-031

ID 1.378
OD 1.75
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5355-057

ID 1.379
OD 2.0
Thickness 0.057
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5356-017

ID 1.38
OD 2.0
Thickness 0.017
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5357-120

ID 1.38
OD 2.126
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5358-150

ID 1.38
OD 2.246
Thickness 0.15
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5359-005

ID 1.391
OD 1.624
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-536-037

ID 0.136
OD 0.438
Thickness 0.037
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5360-062

ID 1.391
OD 1.754
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5361-005

ID 1.391
OD 1.995
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5362-062

ID 1.391
OD 2.0
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5363-005

ID 1.392
OD 1.999
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5364-057

ID 1.393
OD 1.501
Thickness 0.057
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5365-020

ID 1.393
OD 1.995
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5366-093

ID 1.394
OD 1.872
Thickness 0.093
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5367-017

ID 1.394
OD 1.998
Thickness 0.017
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5368-031

ID 1.394
OD 2.0
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5369-009

ID 1.41
OD 1.591
Thickness 0.009
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-537-034

ID 0.137
OD 0.298
Thickness 0.034
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-5370-029

ID 1.41
OD 1.999
Thickness 0.029
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.