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

220-638-015

ID 0.569
OD 1.996
Thickness 0.015
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-639-062

ID 0.392
OD 0.75
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-64-031

ID 0.093
OD 0.437
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-640-064

ID 0.254
OD 0.603
Thickness 0.064
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-641-096

ID 0.597
OD 1.469
Thickness 0.096
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-642-030

ID 0.193
OD 0.755
Thickness 0.03
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-643-012

ID 0.251
OD 0.373
Thickness 0.012
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-644-040

ID 0.179
OD 0.499
Thickness 0.04
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-645-010

ID 1.363
OD 1.768
Thickness 0.01
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-646-020

ID 0.246
OD 0.38
Thickness 0.02
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-647-064

ID 0.198
OD 0.502
Thickness 0.064
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-65-031

ID 0.093
OD 0.5
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-653-041

ID 0.241
OD 0.498
Thickness 0.041
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-654-031

ID 0.325
OD 0.626
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-655-012

ID 1.565
OD 1.753
Thickness 0.012
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-656-031

ID 0.187
OD 0.312
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-657-031

ID 0.509
OD 0.685
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-658-015

ID 0.64
OD 0.905
Thickness 0.015
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-659-031

ID 0.515
OD 0.939
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-66-016

ID 0.097
OD 0.14
Thickness 0.016
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-660-031

ID 0.75
OD 1.115
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-661-047

ID 0.628
OD 1.128
Thickness 0.047
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-662-016

ID 1.073
OD 1.201
Thickness 0.016
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-663-062

ID 0.385
OD 1.499
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-664-042

ID 0.326
OD 0.552
Thickness 0.042
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-665-063

ID 0.302
OD 0.43
Thickness 0.063
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-666-041

ID 1.346
OD 1.794
Thickness 0.041
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-667-064

ID 0.621
OD 1.312
Thickness 0.064
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-668-031

ID 0.102
OD 0.183
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-669-040

ID 0.15
OD 0.311
Thickness 0.04
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-67-016

ID 0.097
OD 0.187
Thickness 0.016
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-670-025

ID 0.119
OD 0.215
Thickness 0.025
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-671-016

ID 0.893
OD 1.13
Thickness 0.016
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-672-031

ID 0.205
OD 0.312
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-673-031

ID 0.507
OD 0.626
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-674-031

ID 0.099
OD 0.264
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-675-031

ID 0.49
OD 0.74
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-676-062

ID 0.17
OD 0.471
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-677-016

ID 0.076
OD 0.146
Thickness 0.016
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-678-050

ID 0.199
OD 0.439
Thickness 0.05
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-679-031

ID 0.264
OD 0.51
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-68-031

ID 0.097
OD 0.2
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-680-066

ID 0.136
OD 0.399
Thickness 0.066
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-681-048

ID 0.264
OD 0.628
Thickness 0.048
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-682-013

ID 0.379
OD 0.629
Thickness 0.013
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-683-040

ID 0.2
OD 0.502
Thickness 0.04
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-684-063

ID 0.452
OD 0.67
Thickness 0.063
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-685-041

ID 0.245
OD 0.47
Thickness 0.041
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-686-065

ID 0.201
OD 0.374
Thickness 0.065
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-687-016

ID 0.318
OD 0.47
Thickness 0.016
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.