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 5965-01-158-4187
NSN 6240-01-445-8673
NSN 6130-01-653-1424
NSN 5945-00-529-0409
NSN 6685-00-765-8283
NSN 5930-01-568-6563
NSN 5945-01-328-8526
NSN 6110-01-486-7706
NSN 6135-01-180-9611
NSN 5985-00-453-6170
NSN 5960-01-223-1203
NSN 6150-01-605-3392