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

300-4258-034

ID 0.314
OD 0.689
Thickness 0.034
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4259-010

ID 0.442
OD 0.691
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-426-030

ID 0.143
OD 0.323
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4260-040

ID 0.505
OD 0.698
Thickness 0.04
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4261-031

ID 0.588
OD 0.703
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4262-039

ID 0.473
OD 0.712
Thickness 0.039
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4263-030

ID 0.452
OD 0.715
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4264-060

ID 0.501
OD 0.747
Thickness 0.06
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4265-010

ID 0.313
OD 0.748
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4266-029

ID 0.201
OD 0.75
Thickness 0.029
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4267-102

ID 0.264
OD 0.811
Thickness 0.102
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4268-012

ID 0.385
OD 0.862
Thickness 0.012
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4269-087

ID 0.383
OD 0.876
Thickness 0.087
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-427-031

ID 0.143
OD 0.561
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4270-002

ID 0.447
OD 0.994
Thickness 0.002
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4271-010

ID 0.266
OD 1.055
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4272-025

ID 0.266
OD 1.055
Thickness 0.025
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4273-007

ID 0.266
OD 1.055
Thickness 0.007
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4274-047

ID 0.628
OD 1.247
Thickness 0.047
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4275-046

ID 0.378
OD 1.248
Thickness 0.046
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4276-121

ID 0.376
OD 1.25
Thickness 0.121
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4277-087

ID 0.882
OD 1.376
Thickness 0.087
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4278-182

ID 0.658
OD 1.499
Thickness 0.182
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4279-101

ID 0.433
OD 1.519
Thickness 0.101
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-428-060

ID 0.143
OD 0.591
Thickness 0.06
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4280-087

ID 0.19
OD 1.684
Thickness 0.087
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4281-074

ID 0.878
OD 1.752
Thickness 0.074
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4282-024

ID 0.098
OD 0.184
Thickness 0.024
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4283-020

ID 0.118
OD 0.211
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4284-018

ID 0.379
OD 0.625
Thickness 0.018
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4285-050

ID 0.256
OD 0.785
Thickness 0.05
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4286-033

ID 0.33
OD 0.874
Thickness 0.033
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4287-117

ID 0.409
OD 1.123
Thickness 0.117
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4288-059

ID 0.398
OD 1.248
Thickness 0.059
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4289-117

ID 0.565
OD 1.997
Thickness 0.117
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-429-031

ID 0.143
OD 0.687
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4290-076

ID 1.504
OD 2.247
Thickness 0.076
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4291-020

ID 2.001
OD 2.499
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4292-059

ID 0.134
OD 0.358
Thickness 0.059
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4293-060

ID 0.255
OD 0.369
Thickness 0.06
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4294-020

ID 0.201
OD 0.38
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4295-063

ID 0.213
OD 0.482
Thickness 0.063
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4296-057

ID 0.206
OD 0.5
Thickness 0.057
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4297-116

ID 0.284
OD 0.622
Thickness 0.116
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4298-.032

ID 0.0
OD 0.797
Thickness 0.032
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4299-063

ID 0.534
OD 0.999
Thickness 0.063
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-43-060

ID 0.0
OD 1.501
Thickness 0.06
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-430-006

ID 0.144
OD 0.208
Thickness 0.006
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4300-049

ID 0.284
OD 1.0
Thickness 0.049
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-4301-078

ID 0.263
OD 1.5
Thickness 0.078
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity