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

300-1043-025

ID 0.219
OD 0.422
Thickness 0.025
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1044-010

ID 0.219
OD 0.432
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1045-058

ID 0.219
OD 0.746
Thickness 0.058
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1046-058

ID 0.219
OD 0.781
Thickness 0.058
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1047-078

ID 0.219
OD 1.25
Thickness 0.078
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1048-020

ID 0.22
OD 0.281
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1049-015

ID 0.22
OD 0.303
Thickness 0.015
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-105-031

ID 0.081
OD 0.278
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1050-010

ID 0.22
OD 0.307
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1051-005

ID 0.22
OD 0.317
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1052-030

ID 0.22
OD 0.432
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1053-061

ID 0.22
OD 0.515
Thickness 0.061
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1054-046

ID 0.22
OD 0.562
Thickness 0.046
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1055-049

ID 0.22
OD 0.685
Thickness 0.049
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1056-059

ID 0.22
OD 0.698
Thickness 0.059
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1057-031

ID 0.22
OD 0.749
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1058-092

ID 0.22
OD 1.0
Thickness 0.092
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1059-032

ID 0.221
OD 0.354
Thickness 0.032
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-106-017

ID 0.081
OD 0.284
Thickness 0.017
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1060-020

ID 0.221
OD 0.361
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1061-030

ID 0.221
OD 0.375
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1062-060

ID 0.221
OD 0.376
Thickness 0.06
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1063-025

ID 0.221
OD 0.387
Thickness 0.025
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1064-020

ID 0.221
OD 0.4
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1065-061

ID 0.221
OD 0.443
Thickness 0.061
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1066-031

ID 0.221
OD 0.467
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1067-025

ID 0.221
OD 0.484
Thickness 0.025
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1068-050

ID 0.221
OD 0.495
Thickness 0.05
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1069-040

ID 0.221
OD 0.495
Thickness 0.04
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-107-016

ID 0.081
OD 0.312
Thickness 0.016
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1070-059

ID 0.221
OD 0.627
Thickness 0.059
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1071-060

ID 0.221
OD 0.686
Thickness 0.06
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1072-047

ID 0.221
OD 1.0
Thickness 0.047
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1073-064

ID 0.221
OD 1.248
Thickness 0.064
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1074-073

ID 0.221
OD 1.504
Thickness 0.073
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1075-014

ID 0.222
OD 0.262
Thickness 0.014
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1076-010

ID 0.222
OD 0.266
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1077-005

ID 0.222
OD 0.28
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1078-002

ID 0.222
OD 0.308
Thickness 0.002
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1079-024

ID 0.222
OD 0.315
Thickness 0.024
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-108-010

ID 0.082
OD 0.115
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1080-010

ID 0.222
OD 0.424
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1081-010

ID 0.222
OD 0.621
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1082-092

ID 0.222
OD 0.993
Thickness 0.092
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1083-010

ID 0.222
OD 0.997
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1084-092

ID 0.222
OD 1.0
Thickness 0.092
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1085-093

ID 0.222
OD 1.249
Thickness 0.093
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1086-010

ID 0.223
OD 0.371
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1087-036

ID 0.223
OD 0.379
Thickness 0.036
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1088-036

ID 0.223
OD 0.431
Thickness 0.036
Material Stainless Steel
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.