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 5905-01-431-6863
NSN 6150-01-658-1059
NSN 5990-00-932-3070
NSN 6145-01-421-2458
NSN 7035-01-429-4183
NSN 5855-01-163-8152
NSN 7035-00-731-8729
NSN 6650-01-206-3584
NSN 7035-01-588-3719
NSN 2925-00-258-9786
NSN 6220-00-653-6680
NSN 5910-01-618-6407