Home | Copper Flat Washers - Sealing & Conductive Washers

Copper Flat Washers - Sealing & Conductive Washers

Copper flat washers are valued for their excellent electrical conductivity, thermal performance, and natural sealing properties-making them a preferred choice for hydraulic fittings, electrical connections, and high-temperature applications. Superior Washer & Gasket Corp manufactures copper washers in standard and custom sizes from quality copper stock.

Our ISO 9001:2015 certified facility produces copper flat washers and copper sealing washers from stock inventory and to custom OD, ID, and thickness specifications. All metal washers are made in the U.S.A. with material certifications available for regulated applications.

  • Superior electrical conductivity and thermal properties
  • Excellent natural sealing performance
  • Standard and custom copper flat washer sizes
  • ISO 9001:2015 certified quality assurance
  • Made in the U.S.A.; certifications available

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Showing 251–300 of 427 products

SKU ID OD Thickness Material ID TOL OD TOL Quantity

815-32-033

ID 0.129
OD 0.375
Thickness 0.033
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-320-032

ID 0.564
OD 0.823
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-321-050

ID 0.805
OD 1.013
Thickness 0.05
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-322-093

ID 0.72
OD 1.06
Thickness 0.093
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-323-062

ID 0.525
OD 0.71
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-324-020

ID 0.0
OD 0.374
Thickness 0.02
Material Copper
ID TOL
OD TOL +-.005
Quantity

815-325-031

ID 0.407
OD 0.626
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-325-128

ID 0.906
OD 2.375
Thickness 0.128
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-326-062

ID 0.527
OD 0.724
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-327-021

ID 0.502
OD 0.749
Thickness 0.021
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-328-050

ID 0.408
OD 1.002
Thickness 0.05
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-329-032

ID 0.437
OD 1.122
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-33-011

ID 0.13
OD 0.309
Thickness 0.011
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-330-063

ID 0.283
OD 0.499
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-331-062

ID 0.331
OD 0.5
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-332-064

ID 0.327
OD 0.502
Thickness 0.064
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-333-032

ID 0.32
OD 0.532
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-334-056

ID 0.437
OD 0.532
Thickness 0.056
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-335-025

ID 0.533
OD 0.621
Thickness 0.025
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-336-062

ID 0.221
OD 0.626
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-337-063

ID 0.44
OD 0.656
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-338-051

ID 0.41
OD 0.663
Thickness 0.051
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-339-062

ID 0.562
OD 0.78
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-34-023

ID 0.132
OD 0.257
Thickness 0.023
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-340-032

ID 0.605
OD 0.811
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-341-063

ID 0.666
OD 0.875
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-342-125

ID 0.69
OD 0.937
Thickness 0.125
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-343-064

ID 0.32
OD 0.749
Thickness 0.064
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-344-032

ID 0.173
OD 0.345
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-345-063

ID 0.396
OD 0.999
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-346-020

ID 0.501
OD 0.625
Thickness 0.02
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-347-040

ID 0.468
OD 0.628
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-348-064

ID 0.397
OD 0.629
Thickness 0.064
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-349-062

ID 0.532
OD 0.719
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-35-063

ID 0.133
OD 0.599
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-350-062

ID 0.41
OD 0.748
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-350-128

ID 1.062
OD 2.5
Thickness 0.128
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-359-062

ID 0.125
OD 0.688
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-36-035

ID 0.139
OD 0.406
Thickness 0.035
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-360-010

ID 0.127
OD 0.715
Thickness 0.01
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-361-065

ID 0.413
OD 0.741
Thickness 0.065
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-362-020

ID 0.234
OD 0.315
Thickness 0.02
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-363-061

ID 0.395
OD 0.553
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-364-062

ID 0.38
OD 0.594
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-365-062

ID 0.45
OD 0.748
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-366-080

ID 0.419
OD 0.78
Thickness 0.08
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-367-093

ID 0.512
OD 0.944
Thickness 0.093
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-368-025

ID 0.223
OD 0.329
Thickness 0.025
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-369-080

ID 0.528
OD 0.701
Thickness 0.08
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-37-032

ID 0.142
OD 0.281
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity