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 6645-01-212-9474
NSN 5895-01-559-3891
NSN 5975-01-551-6764
NSN 5925-01-178-4078
NSN 6105-00-707-5962
NSN 6150-01-434-7013
NSN 5925-00-584-7189
NSN 5960-00-230-5331
NSN 7035-01-062-0184
NSN 5960-00-188-8648
NSN 5985-01-288-0623
NSN 5960-01-413-3877