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 5895-01-435-6624
NSN 5930-01-243-0732
NSN 6135-01-350-2932
NSN 5910-00-401-1202
NSN 5975-01-640-7368
NSN 6145-01-371-2404
NSN 6685-01-408-5086
NSN 4140-01-608-4315
NSN 5910-00-372-4555
NSN 5910-01-055-9743
NSN 6130-01-049-0392
NSN 5920-01-478-7251