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 6650-01-560-8576
NSN 5990-00-269-2226
NSN 5975-00-936-0977
NSN 5975-00-479-4012
NSN 5930-01-644-9460
NSN 6105-00-659-3890
NSN 7035-00-763-6180
NSN 5920-01-342-8900
NSN 5930-00-188-1055
NSN 5925-01-470-9525
NSN 5999-00-288-5954
NSN 5930-01-328-6511