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 5910-01-660-0040
NSN 6685-00-485-5781
NSN 5925-01-152-1188
NSN 7035-01-445-3563
NSN 5855-01-548-1763
NSN 6320-01-504-3948
NSN 5935-00-884-1230
NSN 5965-00-950-0602
NSN 6110-01-479-7464
NSN 5895-01-199-2511
NSN 6110-00-766-0886
NSN 6135-01-377-5729