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 5930-01-332-1102
NSN 5998-00-466-3142
NSN 4140-00-431-3830
NSN 5985-00-846-6442
NSN 6110-01-552-4505
NSN 6220-01-316-2253
NSN 5905-00-237-3197
NSN 6220-00-528-7752
NSN 6320-01-160-7757
NSN 5960-01-509-8779
NSN 5895-01-386-3049
NSN 5999-00-233-5525