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 5990-01-019-3447
NSN 6240-01-183-5425
NSN 5895-00-681-9874
NSN 5920-01-020-7659
NSN 5925-00-713-2646
NSN 5996-00-392-7626
NSN 5965-00-939-4495
NSN 5910-00-239-3191
NSN 2925-01-331-5039
NSN 6220-01-243-8103
NSN 5895-01-604-1543
NSN 4140-01-097-2008