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 6645-01-257-2856
NSN 5905-00-961-8477
NSN 5910-00-088-4837
NSN 6620-00-759-6646
NSN 6110-00-257-5199
NSN 5965-01-598-1231
NSN 5835-01-290-4397
NSN 5925-00-981-9006
NSN 5998-01-384-3214
NSN 6685-01-026-0111
NSN 5999-01-634-0576
NSN 5996-01-587-1177