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 5960-00-116-9989
NSN 5999-00-684-6811
NSN 5925-01-085-5526
NSN 5999-00-691-6334
NSN 6150-00-514-3040
NSN 5990-00-649-8352
NSN 5990-01-309-3740
NSN 5975-00-059-3646
NSN 6135-01-265-1384
NSN 5920-01-187-6100
NSN 6610-01-521-2438
NSN 6110-00-551-8321