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 6240-00-383-7668
NSN 6645-00-283-6794
NSN 6685-00-342-0740
NSN 6220-00-930-2351
NSN 5985-00-235-8899
NSN 5960-01-337-5339
NSN 5945-01-282-8925
NSN 6620-01-357-7751
NSN 2925-01-649-7543
NSN 5975-00-117-9515
NSN 6130-01-072-5622
NSN 6130-01-478-5227