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 6610-01-143-5650
NSN 5835-00-170-5238
NSN 5920-01-372-0281
NSN 6150-01-610-7263
NSN 5996-01-010-0257
NSN 5855-00-896-4047
NSN 5996-01-178-5272
NSN 5925-01-037-3324
NSN 5960-01-086-9650
NSN 6685-01-243-1265
NSN 5905-00-186-8758
NSN 5910-01-158-8290