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 Actions

220-50-031

ID 0.089
OD 0.5
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-500-062

ID 0.51
OD 0.687
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-501-031

ID 0.51
OD 1.0
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-502-031

ID 0.515
OD 0.656
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-503-062

ID 0.515
OD 0.75
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-504-025

ID 0.515
OD 0.83
Thickness 0.025
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-505-062

ID 0.515
OD 0.875
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-506-016

ID 0.515
OD 0.905
Thickness 0.016
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-507-031

ID 0.515
OD 1.0
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-508-062

ID 0.515
OD 1.062
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-509-020

ID 0.515
OD 1.125
Thickness 0.02
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-51-031

ID 0.089
OD 0.562
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-510-031

ID 0.52
OD 1.0
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-511-125

ID 0.525
OD 0.73
Thickness 0.125
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-512-062

ID 0.525
OD 0.725
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-513-031

ID 0.525
OD 0.875
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-513-062

ID 0.525
OD 0.875
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-514-062

ID 0.525
OD 1.0
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-515-031

ID 0.531
OD 1.0
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-516-062

ID 0.531
OD 1.062
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-517-062

ID 0.531
OD 1.224
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-518-062

ID 0.531
OD 1.375
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-519-031

ID 0.545
OD 0.718
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-52-031

ID 0.089
OD 0.625
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-520-031

ID 0.562
OD 0.688
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-521-031

ID 0.562
OD 0.875
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-522-040

ID 0.562
OD 1.0
Thickness 0.04
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-523-062

ID 0.562
OD 1.25
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-524-062

ID 0.562
OD 1.5
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-525-031

ID 0.569
OD 0.75
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-526-062

ID 0.569
OD 0.875
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-527-062

ID 0.569
OD 1.0
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-528-031

ID 0.569
OD 1.125
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-529-062

ID 0.569
OD 1.25
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-53-031

ID 0.093
OD 0.156
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-530-062

ID 0.578
OD 0.75
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-531-040

ID 0.578
OD 0.8
Thickness 0.04
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-532-031

ID 0.578
OD 1.063
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-533-031

ID 0.6
OD 0.75
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-534-031

ID 0.6
OD 0.812
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-535-050

ID 0.625
OD 0.75
Thickness 0.05
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-536-040

ID 0.63
OD 0.826
Thickness 0.04
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-537-031

ID 0.63
OD 0.875
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-538-062

ID 0.63
OD 0.941
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-539-031

ID 0.63
OD 1.0
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-54-020

ID 0.093
OD 0.167
Thickness 0.02
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-540-093

ID 0.63
OD 1.062
Thickness 0.093
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-541-031

ID 0.64
OD 0.781
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-542-031

ID 0.64
OD 0.875
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-543-062

ID 0.64
OD 1.0
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

Description

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.