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.
Dept. of the Navy Classification: Washers other than lock washers, iron or steel
NSN 5960-00-007-4179
NSN 5945-01-423-1009
NSN 6610-01-276-7087
NSN 6645-01-023-0005
NSN 6135-01-380-4396
NSN 6110-01-227-6851
NSN 5855-01-380-9950
NSN 6150-01-302-4425
NSN 5935-01-555-8418
NSN 5998-01-577-8378
NSN 6610-00-382-0266
NSN 4140-01-168-4308