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 2925-01-458-5808
NSN 2925-01-055-7607
NSN 5950-00-476-9678
NSN 6130-01-047-0213
NSN 5960-00-654-3639
NSN 2925-00-113-6146
NSN 5945-01-335-1912
NSN 6105-01-445-6574
NSN 5999-01-332-1251
NSN 5910-00-816-9096
NSN 6620-01-195-4602
NSN 5930-01-619-4723