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 5998-00-180-1005
NSN 6650-01-082-5534
NSN 5935-01-430-5562
NSN 5935-00-138-7946
NSN 5985-01-053-7808
NSN 5935-01-379-1912
NSN 5910-01-278-3414
NSN 6130-01-530-9840
NSN 6685-01-536-9637
NSN 5945-00-558-9155
NSN 5998-01-064-7080
NSN 6645-00-574-9712