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 5996-01-437-1186
NSN 2925-01-218-5556
NSN 6135-01-156-4627
NSN 7035-01-517-1713
NSN 5999-00-761-4738
NSN 6130-00-236-8930
NSN 2925-01-538-1343
NSN 6220-01-016-8128
NSN 6320-01-207-9038
NSN 5975-01-012-5545
NSN 6105-00-691-8493
NSN 5920-00-427-7267