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 6650-00-356-8405
NSN 5915-00-079-1011
NSN 5999-01-348-1216
NSN 6130-01-189-1258
NSN 6220-01-296-6100
NSN 6685-00-912-1847
NSN 5975-01-417-1631
NSN 5915-01-116-8490
NSN 5950-01-127-1457
NSN 5998-00-079-1375
NSN 5990-01-581-5103
NSN 5996-01-483-1032