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 6150-01-159-7657
NSN 6240-01-177-9361
NSN 6130-01-441-2326
NSN 5999-00-753-1071
NSN 6320-01-194-1253
NSN 6130-01-305-5396
NSN 2925-00-961-2117
NSN 6110-01-620-6559
NSN 5998-01-513-7897
NSN 5925-01-539-8194
NSN 5985-01-258-1049
NSN 7035-01-003-9142