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 5925-01-131-5869
NSN 6110-01-005-5140
NSN 6150-01-096-4584
NSN 5930-01-625-2873
NSN 5999-01-261-6332
NSN 6150-01-526-4908
NSN 5999-00-122-1500
NSN 5965-00-233-3851
NSN 6130-00-949-1563
NSN 6220-00-740-5333
NSN 5965-00-871-2678
NSN 5855-01-454-1538