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 6145-00-565-9560
NSN 5950-00-410-8077
NSN 6650-00-401-1496
NSN 4140-00-852-7101
NSN 6150-01-421-3349
NSN 5950-01-549-0199
NSN 2925-01-443-1748
NSN 5985-01-085-9332
NSN 4140-00-289-4304
NSN 5855-01-177-4751
NSN 5925-01-371-2876
NSN 5910-01-468-6391