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 5855-01-418-6303
NSN 5920-00-966-9392
NSN 5945-01-466-0433
NSN 7035-01-105-0191
NSN 6130-01-626-1802
NSN 4140-01-240-6125
NSN 5855-01-426-5589
NSN 5935-01-503-9826
NSN 6610-01-348-0545
NSN 5855-01-573-2483
NSN 5855-00-079-2370
NSN 6320-01-397-9995