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 5910-00-816-9909
NSN 5935-00-166-0776
NSN 5996-01-313-1497
NSN 6145-01-257-4465
NSN 6645-01-485-3517
NSN 6240-00-170-5302
NSN 5930-01-257-4144
NSN 5925-00-058-7941
NSN 6110-01-415-0589
NSN 5910-00-038-6902
NSN 5910-00-703-2390
NSN 4140-00-203-6586