316 Stainless Steel Flat Washers - Marine-Grade Corrosion Resistance

316 stainless steel flat washers offer superior corrosion resistance compared to 304 grade, thanks to the addition of molybdenum, which provides enhanced protection against chlorides, seawater, and acidic environments. They are the preferred choice for marine, offshore, chemical processing, and pharmaceutical fastener applications.

Superior Washer & Gasket Corp manufactures 316 stainless steel flat washers in standard and custom sizes with ISO 9001:2015 certified quality management. We maintain inventory of 316 stainless washers for fast delivery and produce custom sizes to your dimensional requirements-all made in the U.S.A. with material certifications available.

  • 316 stainless steel with molybdenum for superior chloride resistance
  • Preferred grade for marine and chemical applications
  • Standard and custom 316 stainless flat washer sizes
  • ISO 9001:2015 certified quality control
  • Made in the U.S.A.; material certifications available

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Showing 201–250 of 477 products

SKU ID OD Thickness Material ID TOL OD TOL Quantity Actions

380-250-029

ID 0.269
OD 0.502
Thickness 0.029
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-251-059

ID 0.349
OD 0.687
Thickness 0.059
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-252-180

ID 0.828
OD 2.163
Thickness 0.18
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-253-036

ID 0.206
OD 0.5
Thickness 0.035
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-254-060

ID 0.268
OD 0.56
Thickness 0.059
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-255-047

ID 0.16
OD 0.562
Thickness 0.047
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-256-060

ID 0.269
OD 0.562
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-257-060

ID 0.331
OD 0.622
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-258-060

ID 0.284
OD 0.737
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-259-037

ID 0.205
OD 0.75
Thickness 0.037
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-26-051

ID 0.098
OD 0.301
Thickness 0.051
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-260-060

ID 0.268
OD 0.876
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-261-048

ID 0.346
OD 1.25
Thickness 0.048
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-262-120

ID 0.686
OD 1.747
Thickness 0.12
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-263-060

ID 0.348
OD 1.997
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-264-060

ID 0.407
OD 2.0
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-265-030

ID 0.347
OD 0.626
Thickness 0.03
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-266-060

ID 0.753
OD 0.998
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-267-020

ID 0.257
OD 0.376
Thickness 0.02
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-268-028

ID 0.143
OD 0.624
Thickness 0.028
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-269-040

ID 0.485
OD 0.709
Thickness 0.04
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-27-025

ID 0.1
OD 0.25
Thickness 0.025
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-270-060

ID 0.39
OD 1.0
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-271-003

ID 0.0
OD 1.304
Thickness 0.003
Material 316 Stainless Steel
ID TOL Not available
OD TOL +-.005
Quantity

380-272-040

ID 0.756
OD 1.312
Thickness 0.04
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-273-120

ID 1.557
OD 2.111
Thickness 0.12
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-274-100

ID 0.531
OD 1.25
Thickness 0.1
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-275-028

ID 0.189
OD 0.364
Thickness 0.028
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-276-050

ID 0.221
OD 0.628
Thickness 0.05
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-277-186

ID 0.561
OD 1.252
Thickness 0.186
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-278-110

ID 0.815
OD 2.0
Thickness 0.11
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-279-030

ID 0.204
OD 1.5
Thickness 0.03
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-28-050

ID 0.1
OD 0.31
Thickness 0.05
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-280-060

ID 0.379
OD 0.562
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-281-060

ID 0.532
OD 1.5
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-282-120

ID 0.281
OD 1.246
Thickness 0.12
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-283-120

ID 0.854
OD 1.246
Thickness 0.12
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-284-160

ID 0.815
OD 1.471
Thickness 0.16
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-285-100

ID 0.683
OD 1.748
Thickness 0.1
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-286-034

ID 0.178
OD 0.285
Thickness 0.034
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-287-060

ID 0.603
OD 0.784
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-288-060

ID 0.41
OD 0.812
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-289-030

ID 0.456
OD 0.939
Thickness 0.03
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-29-033

ID 0.109
OD 0.254
Thickness 0.033
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-290-048

ID 0.285
OD 1.0
Thickness 0.048
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-291-075

ID 0.658
OD 1.31
Thickness 0.075
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-294-060

ID 0.284
OD 0.627
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-295-103

ID 0.658
OD 1.247
Thickness 0.103
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-30-031

ID 0.121
OD 0.209
Thickness 0.031
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-303-117

ID 0.392
OD 1.001
Thickness 0.117
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

Description