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 6685-01-428-9615
NSN 5950-00-857-7131
NSN 6685-01-413-3211
NSN 6130-00-845-8986
NSN 6145-01-229-4136
NSN 4140-01-360-9577
NSN 5855-01-188-4049
NSN 6685-01-260-2940
NSN 6620-00-417-6285
NSN 5975-00-758-6813
NSN 6135-01-575-5061
NSN 5996-00-043-1991