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 5985-00-540-1964
NSN 5985-01-510-2573
NSN 5895-01-603-0035
NSN 6685-01-282-9943
NSN 6645-01-012-5972
NSN 6650-01-228-5094
NSN 5960-01-654-4353
NSN 5990-01-041-8008
NSN 6145-01-209-9562
NSN 7035-00-421-0468
NSN 5996-00-737-0646
NSN 6220-01-545-0001