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 51–100 of 427 products

SKU ID OD Thickness Material ID TOL OD TOL Quantity

815-142-015

ID 0.378
OD 0.562
Thickness 0.015
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-142-031

ID 0.378
OD 0.562
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-143-031

ID 0.378
OD 0.873
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-144-032

ID 0.379
OD 0.499
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-145-033

ID 0.379
OD 0.562
Thickness 0.033
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-146-063

ID 0.379
OD 0.619
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-147-033

ID 0.38
OD 0.688
Thickness 0.033
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-148-032

ID 0.382
OD 0.533
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-149-061

ID 0.384
OD 0.755
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-15-010

ID 0.092
OD 0.2
Thickness 0.01
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-15-016

ID 0.092
OD 0.2
Thickness 0.016
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-150-063

ID 0.387
OD 0.488
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-151-071

ID 0.388
OD 0.875
Thickness 0.071
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-152-032

ID 0.392
OD 0.625
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-153-065

ID 0.392
OD 1.0
Thickness 0.065
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-154-032

ID 0.393
OD 0.499
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-155-032

ID 0.394
OD 0.561
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-156-032

ID 0.394
OD 0.562
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-157-063

ID 0.394
OD 0.564
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-158-061

ID 0.394
OD 0.624
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-159-060

ID 0.394
OD 0.627
Thickness 0.06
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-16-043

ID 0.095
OD 0.219
Thickness 0.043
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-160-062

ID 0.394
OD 0.687
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-161-063

ID 0.394
OD 0.751
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-162-031

ID 0.4
OD 0.544
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-163-063

ID 0.404
OD 0.625
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-164-126

ID 0.407
OD 0.75
Thickness 0.126
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-165-032

ID 0.408
OD 0.75
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-166-062

ID 0.409
OD 0.623
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-167-032

ID 0.41
OD 0.626
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-168-062

ID 0.41
OD 0.812
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-169-061

ID 0.41
OD 0.999
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-17-005

ID 0.097
OD 0.154
Thickness 0.005
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-170-124

ID 0.411
OD 0.751
Thickness 0.124
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-171-015

ID 0.424
OD 0.617
Thickness 0.015
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-172-032

ID 0.437
OD 0.625
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-173-031

ID 0.437
OD 0.749
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-174-065

ID 0.439
OD 0.814
Thickness 0.065
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-175-032

ID 0.44
OD 0.685
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-176-031

ID 0.44
OD 0.687
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-177-032

ID 0.44
OD 0.75
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-178-058

ID 0.441
OD 0.533
Thickness 0.058
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-179-062

ID 0.441
OD 0.75
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-18-015

ID 0.099
OD 0.154
Thickness 0.015
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-180-020

ID 0.442
OD 0.618
Thickness 0.02
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-181-064

ID 0.443
OD 0.526
Thickness 0.064
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-182-062

ID 0.456
OD 0.874
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-183-031

ID 0.456
OD 0.876
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-184-061

ID 0.457
OD 0.594
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-185-062

ID 0.457
OD 0.625
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity