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 6135-01-282-4326
NSN 5905-00-386-8325
NSN 6685-01-174-0873
NSN 5910-01-607-8212
NSN 5985-01-326-6580
NSN 6150-01-157-6319
NSN 5965-01-205-6249
NSN 6645-00-061-1885
NSN 5998-01-558-2114
NSN 7035-01-391-3518
NSN 5920-01-415-6046
NSN 7035-00-371-7749