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 351–400 of 427 products

SKU ID OD Thickness Material ID TOL OD TOL Quantity

815-418-020

ID 0.564
OD 0.688
Thickness 0.02
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-419-050

ID 0.886
OD 1.112
Thickness 0.05
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-42-025

ID 0.156
OD 0.308
Thickness 0.025
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-420-093

ID 1.002
OD 1.25
Thickness 0.093
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-421-090

ID 0.486
OD 0.717
Thickness 0.09
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-422-040

ID 0.563
OD 0.851
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-423-034

ID 0.309
OD 0.603
Thickness 0.034
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-424-020

ID 0.401
OD 0.696
Thickness 0.02
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-425-080

ID 0.414
OD 0.811
Thickness 0.08
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-426-032

ID 0.127
OD 0.39
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-427-031

ID 0.476
OD 0.69
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-428-080

ID 1.043
OD 1.279
Thickness 0.08
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-429-032

ID 0.234
OD 0.375
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-43-025

ID 0.156
OD 0.31
Thickness 0.025
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-430-031

ID 0.252
OD 0.391
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-431-032

ID 0.201
OD 0.312
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-432-061

ID 0.319
OD 0.5
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-433-062

ID 0.381
OD 0.626
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-434-063

ID 0.407
OD 0.813
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-435-063

ID 0.502
OD 0.813
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-436-125

ID 0.752
OD 1.97
Thickness 0.125
Material Copper
ID TOL +-.005
OD TOL +-.010
Quantity

815-44-020

ID 0.156
OD 0.504
Thickness 0.02
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-45-040

ID 0.158
OD 0.26
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-46-062

ID 0.16
OD 0.329
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-47-039

ID 0.166
OD 0.292
Thickness 0.039
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-48-039

ID 0.167
OD 0.29
Thickness 0.039
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-49-033

ID 0.167
OD 0.311
Thickness 0.033
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-50-040

ID 0.171
OD 0.411
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-51-019

ID 0.173
OD 0.252
Thickness 0.019
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-52-082

ID 0.188
OD 0.343
Thickness 0.082
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-53-041

ID 0.188
OD 0.438
Thickness 0.041
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-54-050

ID 0.189
OD 0.438
Thickness 0.05
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-55-064

ID 0.189
OD 0.501
Thickness 0.064
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-56-040

ID 0.19
OD 0.438
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-57-016

ID 0.194
OD 0.316
Thickness 0.016
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-58-063

ID 0.194
OD 0.375
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-59-030

ID 0.201
OD 0.379
Thickness 0.03
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-60-030

ID 0.202
OD 0.374
Thickness 0.03
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-61-033

ID 0.204
OD 0.311
Thickness 0.033
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-62-014

ID 0.206
OD 0.35
Thickness 0.014
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-63-005

ID 0.206
OD 0.47
Thickness 0.005
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-64-032

ID 0.207
OD 0.438
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-65-051

ID 0.208
OD 0.438
Thickness 0.051
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-66-062

ID 0.209
OD 0.369
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-67-029

ID 0.213
OD 0.427
Thickness 0.029
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-68-040

ID 0.222
OD 0.438
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-69-041

ID 0.223
OD 0.423
Thickness 0.041
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-70-050

ID 0.223
OD 0.438
Thickness 0.05
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-71-051

ID 0.223
OD 0.439
Thickness 0.051
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-72-032

ID 0.229
OD 0.312
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity