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 5935-01-360-5025
NSN 6685-00-163-3116
NSN 7035-01-361-8821
NSN 5835-01-502-9228
NSN 5999-01-548-7615
NSN 6320-01-334-9840
NSN 4140-01-376-5877
NSN 4140-00-860-1373
NSN 5975-01-367-4161
NSN 6240-00-235-5159
NSN 5925-01-507-8258
NSN 5855-00-586-6255