Home | 301/302/304 Stainless Steel Flat Washers - Corrosion-Resistant Washers

301/302/304 Stainless Steel Flat Washers - Corrosion-Resistant Washers

Stainless steel flat washers in 301, 302, and 304 grades provide excellent corrosion resistance, strength, and aesthetic quality for fastener assemblies across marine, food processing, pharmaceutical, architectural, and industrial applications. Superior Washer & Gasket Corp manufactures 300-series stainless steel flat washers in a broad range of standard and custom sizes.

Our ISO 9001:2015 certified manufacturing facility supplies stainless steel washers from stock inventory and produces custom stainless flat washers with tight dimensional tolerances. All stainless steel washers are made in the U.S.A. with material certifications available for regulated applications.

  • 301, 302, and 304 stainless steel grades available
  • Broad standard size inventory for fast delivery
  • Custom stainless steel flat washers to specification
  • ISO 9001:2015 certified quality assurance
  • Made in the U.S.A.; certifications available
SKU ID OD Thickness Material ID TOL OD TOL Quantity

300-4396-003

ID 0.867
OD 0.758
Thickness 0.003
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-44-035

ID 0.0
OD 1.502
Thickness 0.035
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-440-031

ID 0.144
OD 0.5
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4404-010

ID 0.742
OD 0.671
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4407-002

ID 0.496
OD 0.369
Thickness 0.002
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4408-038

ID 0.505
OD 0.224
Thickness 0.038
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-441-048

ID 0.144
OD 0.575
Thickness 0.048
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4416-007

ID 0.87
OD 0.69
Thickness 0.007
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-442-025

ID 0.144
OD 0.749
Thickness 0.025
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4422-005

ID 0.236
OD 0.193
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4425-068

ID 0.47
OD 0.256
Thickness 0.068
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-443-026

ID 0.144
OD 0.999
Thickness 0.026
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4437-019

ID 0.522
OD 0.223
Thickness 0.019
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4438-016

ID 0.561
OD 0.265
Thickness 0.016
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-444-056

ID 0.144
OD 1.248
Thickness 0.056
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4440-116

ID 0.624
OD 0.268
Thickness 0.116
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4446-091

ID 0.409
OD 1.499
Thickness 0.091
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4447-073

ID 1.747
OD 1.018
Thickness 0.073
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-445-062

ID 0.145
OD 0.626
Thickness 0.062
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4456-015

ID 0.322
OD 0.199
Thickness 0.015
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-446-005

ID 0.146
OD 0.243
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4465-020

ID 0.144
OD 0.098
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4469-018

ID 0.496
OD 0.319
Thickness 0.018
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-447-010

ID 0.146
OD 0.25
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4477-015

ID 0.239
OD 0.133
Thickness 0.015
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4479-030

ID 0.249
OD 0.192
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-448-005

ID 0.146
OD 0.261
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4487-073

ID 0.437
OD 0.203
Thickness 0.073
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4488-059

ID 0.451
OD 0.254
Thickness 0.059
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-449-039

ID 0.146
OD 0.282
Thickness 0.039
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4491-020

ID 0.87
OD 0.689
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4499-031

ID 3.499
OD 2.502
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-45-010

ID 0.0
OD 1.57
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-450-030

ID 0.146
OD 0.31
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4500-028

ID 0.188
OD 0.095
Thickness 0.028
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-451-040

ID 0.146
OD 0.374
Thickness 0.04
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-452-020

ID 0.147
OD 0.21
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-453-010

ID 0.147
OD 0.241
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-454-012

ID 0.147
OD 0.248
Thickness 0.012
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-455-005

ID 0.147
OD 0.251
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-456-040

ID 0.147
OD 0.251
Thickness 0.04
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-457-030

ID 0.147
OD 0.266
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-458-032

ID 0.147
OD 0.27
Thickness 0.032
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-459-005

ID 0.147
OD 0.3
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-46-059

ID 0.0
OD 1.622
Thickness 0.059
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-460-038

ID 0.147
OD 0.312
Thickness 0.038
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-461-030

ID 0.147
OD 0.318
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-462-003

ID 0.147
OD 0.393
Thickness 0.003
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4622-015

ID 0.378
OD 0.562
Thickness 0.015
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4623-062

ID 0.289
OD 0.642
Thickness 0.062
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity