A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Copper washers including spring washers not threaded
NSN 5975-01-082-1694
NSN 5925-01-254-2578
NSN 6685-01-521-3950
NSN 5855-01-040-3882
NSN 6150-00-251-7608
NSN 5985-01-197-4431
NSN 5935-01-204-8328
NSN 6240-01-235-2604
NSN 7035-01-249-4547
NSN 5960-00-005-7132
NSN 6240-01-342-1588
NSN 6220-01-616-2987