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 6130-01-056-5251
NSN 5895-01-497-5386
NSN 6685-00-907-1554
NSN 6685-00-131-2200
NSN 5855-01-093-8202
NSN 5910-01-559-9149
NSN 5920-01-325-2226
NSN 5905-01-288-1907
NSN 5990-01-652-7373
NSN 5945-00-580-0873
NSN 5915-00-348-6892
NSN 5905-00-098-5609