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 5905-00-684-4999
NSN 6685-01-521-9788
NSN 6105-01-443-9028
NSN 5998-00-453-4711
NSN 5960-00-681-0395
NSN 6145-01-422-6059
NSN 6110-01-200-5558
NSN 5835-01-115-6067
NSN 6150-01-377-7130
NSN 7035-01-599-9942
NSN 5855-00-147-2508
NSN 2925-01-510-9378