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 5975-01-323-3757
NSN 6110-01-195-7628
NSN 5965-01-406-6320
NSN 5999-01-511-2872
NSN 6135-01-452-2421
NSN 5990-00-436-7766
NSN 5975-01-157-9432
NSN 5930-01-391-1529
NSN 2925-01-330-2988
NSN 5985-01-654-0448
NSN 6240-00-275-1950
NSN 6645-01-466-9477