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 5950-01-566-2761
NSN 5996-00-292-5394
NSN 5905-01-647-1286
NSN 2925-01-118-5191
NSN 5985-00-315-1483
NSN 6130-01-137-4187
NSN 5990-01-481-8441
NSN 2925-00-416-2894
NSN 5920-01-528-3432
NSN 6645-00-276-7544
NSN 6620-01-110-6803
NSN 6145-01-414-8272