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 7035-00-193-2269
NSN 5935-01-555-8546
NSN 4140-01-433-1192
NSN 5950-00-777-2117
NSN 6610-01-005-1190
NSN 6220-01-400-0637
NSN 5935-00-916-3860
NSN 5905-01-063-8069
NSN 5905-01-351-9396
NSN 6135-00-495-6862
NSN 6220-00-450-2175
NSN 6130-00-836-8063