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 5985-01-372-5533
NSN 7035-00-335-7283
NSN 5915-01-449-1731
NSN 5910-01-444-3774
NSN 6110-01-295-5322
NSN 6610-00-482-2265
NSN 5998-01-170-5520
NSN 5935-01-653-2217
NSN 2925-00-203-8735
NSN 6110-01-295-8296
NSN 5910-01-110-7141
NSN 5915-01-067-1279