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 4140-00-883-1115
NSN 6685-01-367-3675
NSN 6685-00-184-3894
NSN 5895-01-391-0113
NSN 5910-01-422-1699
NSN 5990-00-281-4164
NSN 6220-00-533-3936
NSN 5950-01-387-0138
NSN 5985-01-156-7507
NSN 5998-00-983-5220
NSN 6110-00-916-4625
NSN 5985-01-265-5925