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 6110-01-116-0073
NSN 7035-00-763-6180
NSN 6240-00-126-4551
NSN 5996-01-249-7392
NSN 6150-00-974-9261
NSN 5999-00-182-8908
NSN 5905-01-142-3955
NSN 5920-01-310-8120
NSN 5910-01-290-3769
NSN 6145-00-999-5303
NSN 6220-01-477-5001
NSN 6650-01-127-4647