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 301–350 of 427 products

SKU ID OD Thickness Material ID TOL OD TOL Quantity

815-370-063

ID 0.38
OD 0.613
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-371-094

ID 0.563
OD 0.783
Thickness 0.094
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-372-061

ID 0.556
OD 0.786
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-373-062

ID 0.633
OD 1.203
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-374-062

ID 0.501
OD 0.735
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-375-092

ID 0.56
OD 0.812
Thickness 0.092
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-376-020

ID 0.0
OD 0.813
Thickness 0.02
Material Copper
ID TOL
OD TOL +-.005
Quantity

815-377-058

ID 0.636
OD 0.874
Thickness 0.058
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-378-062

ID 0.752
OD 1.018
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-379-025

ID 0.189
OD 0.373
Thickness 0.025
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-38-020

ID 0.145
OD 0.253
Thickness 0.02
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-380-036

ID 0.197
OD 0.36
Thickness 0.036
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-381-089

ID 0.502
OD 0.746
Thickness 0.089
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-382-062

ID 0.516
OD 0.747
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-383-032

ID 0.643
OD 0.748
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-384-079

ID 0.641
OD 0.81
Thickness 0.079
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-385-125

ID 0.685
OD 0.937
Thickness 0.125
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-386-125

ID 1.003
OD 1.498
Thickness 0.125
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-387-091

ID 0.491
OD 0.694
Thickness 0.091
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-388-062

ID 1.372
OD 1.626
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-389-062

ID 0.469
OD 0.748
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-39-032

ID 0.147
OD 0.25
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-390-051

ID 0.451
OD 0.749
Thickness 0.051
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-391-031

ID 0.497
OD 0.814
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-392-062

ID 1.063
OD 1.562
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-393-061

ID 0.39
OD 0.563
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-394-080

ID 0.313
OD 1.272
Thickness 0.08
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-395-062

ID 0.162
OD 0.374
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-396-062

ID 0.173
OD 0.376
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-397-050

ID 0.305
OD 0.432
Thickness 0.05
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-398-065

ID 0.338
OD 0.75
Thickness 0.065
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-399-087

ID 0.5
OD 0.754
Thickness 0.087
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-40-010

ID 0.148
OD 0.25
Thickness 0.01
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-400-093

ID 0.685
OD 1.496
Thickness 0.093
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-401-094

ID 0.5
OD 0.81
Thickness 0.094
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-402-079

ID 0.63
OD 0.862
Thickness 0.079
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-403-125

ID 0.902
OD 1.298
Thickness 0.125
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-404-032

ID 0.314
OD 0.562
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-407-040

ID 1.34
OD 1.54
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-408-032

ID 0.321
OD 0.532
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-409-016

ID 0.253
OD 0.562
Thickness 0.016
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-41-012

ID 0.149
OD 0.347
Thickness 0.012
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-410-062

ID 0.628
OD 1.0
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-411-025

ID 0.869
OD 1.025
Thickness 0.025
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-412-062

ID 0.316
OD 0.563
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-413-040

ID 0.415
OD 0.71
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-414-092

ID 0.822
OD 1.025
Thickness 0.092
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-415-062

ID 1.014
OD 1.311
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-416-062

ID 0.346
OD 0.56
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-417-020

ID 0.0
OD 0.565
Thickness 0.02
Material Copper
ID TOL
OD TOL +-.005
Quantity