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 151–200 of 477 products

SKU ID OD Thickness Material ID TOL OD TOL Quantity Actions

380-21-048

ID 0.095
OD 0.312
Thickness 0.048
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-210-060

ID 0.564
OD 0.843
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-211-048

ID 0.564
OD 0.874
Thickness 0.048
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-212-078

ID 0.564
OD 1.001
Thickness 0.078
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-213-074

ID 0.564
OD 1.375
Thickness 0.074
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-213-093

ID 0.564
OD 1.375
Thickness 0.093
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-213-103

ID 0.564
OD 1.375
Thickness 0.103
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-213-125

ID 0.564
OD 1.375
Thickness 0.125
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-214-125

ID 0.565
OD 2.495
Thickness 0.125
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-215-065

ID 0.594
OD 0.781
Thickness 0.065
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-216-119

ID 0.597
OD 1.121
Thickness 0.119
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-217-025

ID 0.601
OD 0.885
Thickness 0.025
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-218-059

ID 0.611
OD 0.875
Thickness 0.059
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-219-051

ID 0.629
OD 0.93
Thickness 0.051
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-22-025

ID 0.096
OD 0.247
Thickness 0.025
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-220-049

ID 0.629
OD 0.936
Thickness 0.049
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-221-020

ID 0.639
OD 0.828
Thickness 0.02
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-222-062

ID 0.64
OD 0.874
Thickness 0.062
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-223-032

ID 0.64
OD 1.187
Thickness 0.032
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-223-060

ID 0.64
OD 1.187
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-224-104

ID 0.66
OD 1.249
Thickness 0.104
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-225-076

ID 0.66
OD 1.312
Thickness 0.076
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-225-120

ID 0.66
OD 1.312
Thickness 0.12
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-226-061

ID 0.66
OD 1.374
Thickness 0.061
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-227-090

ID 0.66
OD 1.748
Thickness 0.09
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-228-080

ID 0.688
OD 1.187
Thickness 0.08
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-229-078

ID 0.688
OD 1.5
Thickness 0.078
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-23-032

ID 0.096
OD 0.25
Thickness 0.032
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-230-094

ID 0.69
OD 1.748
Thickness 0.094
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-230-120

ID 0.69
OD 1.748
Thickness 0.12
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-231-049

ID 0.738
OD 1.124
Thickness 0.049
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-232-019

ID 0.749
OD 0.829
Thickness 0.019
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-233-062

ID 0.754
OD 1.25
Thickness 0.062
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-234-125

ID 0.754
OD 1.497
Thickness 0.125
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-235-060

ID 0.814
OD 1.11
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-236-133

ID 0.814
OD 1.5
Thickness 0.133
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-237-078

ID 0.847
OD 1.625
Thickness 0.078
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-238-066

ID 0.894
OD 1.093
Thickness 0.066
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-239-062

ID 0.894
OD 1.727
Thickness 0.062
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-24-031

ID 0.097
OD 0.221
Thickness 0.031
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-240-062

ID 0.91
OD 1.123
Thickness 0.062
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-241-135

ID 0.943
OD 1.748
Thickness 0.135
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-242-121

ID 1.19
OD 2.503
Thickness 0.121
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-243-072

ID 1.394
OD 1.921
Thickness 0.072
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-244-033

ID 1.565
OD 1.808
Thickness 0.033
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-245-030

ID 0.125
OD 0.312
Thickness 0.03
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-248-060

ID 0.408
OD 0.874
Thickness 0.06
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-249-100

ID 0.812
OD 1.373
Thickness 0.1
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-25-015

ID 0.098
OD 0.248
Thickness 0.015
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

380-25-028

ID 0.098
OD 0.248
Thickness 0.028
Material 316 Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

Description