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 6220-00-983-4362
NSN 5935-01-355-2403
NSN 5895-01-487-7132
NSN 5910-01-502-6614
NSN 6620-01-345-9488
NSN 6240-00-681-2795
NSN 7035-01-144-6408
NSN 6145-01-119-3746
NSN 4140-01-544-3312
NSN 5960-01-172-2088
NSN 5996-00-222-6049
NSN 6145-01-441-4239