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 4140-01-487-4232
NSN 6645-01-004-0803
NSN 4140-00-862-5644
NSN 7035-01-632-6120
NSN 5895-01-391-5682
NSN 5915-01-178-7523
NSN 5895-01-436-3367
NSN 6685-01-519-5843
NSN 6145-01-144-5728
NSN 6610-01-210-2051
NSN 6145-00-170-9415
NSN 5945-01-630-5078