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 5920-00-131-3226
NSN 5910-01-145-5166
NSN 6685-00-269-6444
NSN 6145-00-291-5388
NSN 6105-00-254-4426
NSN 6610-00-394-1427
NSN 6130-01-135-0004
NSN 6220-01-393-8160
NSN 5996-01-381-1997
NSN 5925-00-348-3591
NSN 6105-00-846-2608
NSN 6620-01-642-9678