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: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 6130-00-073-2994
NSN 6135-01-008-4595
NSN 5895-01-279-1998
NSN 5910-01-391-0032
NSN 6320-01-195-5583
NSN 5960-01-202-6610
NSN 5915-01-555-8081
NSN 6620-00-722-3875
NSN 6145-01-107-3275
NSN 6240-00-715-5118
NSN 6150-01-429-2924
NSN 6220-00-719-7714