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 5950-01-391-4606
NSN 6110-01-391-6497
NSN 5915-00-570-9289
NSN 5996-00-488-2273
NSN 5999-00-837-6785
NSN 5910-00-321-8167
NSN 4140-00-557-7001
NSN 6220-01-348-9620
NSN 5905-00-782-0341
NSN 5855-01-301-0158
NSN 6145-01-359-4691
NSN 5935-01-442-3521