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 2925-00-176-3889
NSN 6620-00-479-9425
NSN 6320-01-433-3953
NSN 5960-01-467-0961
NSN 6220-01-136-7820
NSN 6320-00-098-2858
NSN 5999-00-925-2502
NSN 5895-01-528-7708
NSN 5855-01-454-9657
NSN 5905-00-337-7094
NSN 5935-01-458-1036
NSN 5925-01-322-9078