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 6645-00-449-4446
NSN 6685-01-018-2735
NSN 6685-00-423-7316
NSN 2925-01-603-6379
NSN 6110-01-111-2614
NSN 6110-01-427-0161
NSN 4140-01-605-1533
NSN 5960-00-266-6741
NSN 5975-00-827-1107
NSN 5965-01-380-9821
NSN 5835-01-067-9271
NSN 6320-00-790-4844