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 6240-01-446-6315
NSN 6645-01-124-6277
NSN 5925-01-411-5222
NSN 5905-01-602-8337
NSN 6220-01-284-8774
NSN 6150-01-430-2564
NSN 6610-00-790-6946
NSN 6105-01-063-4911
NSN 6130-00-068-4023
NSN 5915-00-151-7849
NSN 2925-00-585-9861
NSN 6150-00-959-8769