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 5930-01-471-0424
NSN 5855-00-198-3197
NSN 5996-01-116-2523
NSN 5999-01-533-5238
NSN 5950-01-123-6037
NSN 5999-01-147-4844
NSN 6145-00-466-4068
NSN 6145-01-020-7722
NSN 6645-01-555-4356
NSN 5985-01-486-4610
NSN 6135-00-542-6216
NSN 5935-01-222-1717