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 5975-01-447-3267
NSN 2925-00-070-3542
NSN 6220-01-113-1474
NSN 5910-01-485-3386
NSN 7035-00-371-7749
NSN 6110-00-257-5199
NSN 5925-00-182-7452
NSN 6685-00-126-3741
NSN 2925-00-035-5633
NSN 5905-01-634-0595
NSN 5855-01-446-8848
NSN 5999-01-131-6669