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 5855-01-307-4520
NSN 6130-01-313-1160
NSN 6650-00-221-7119
NSN 6150-00-170-8008
NSN 5835-01-532-9373
NSN 5950-00-558-4780
NSN 2925-01-099-7075
NSN 6320-01-219-5174
NSN 7035-01-421-4446
NSN 5935-00-346-8001
NSN 5895-01-381-6043
NSN 4140-00-361-4691