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 6620-00-433-9438
NSN 5935-01-420-5897
NSN 6105-00-186-9380
NSN 4140-01-423-1647
NSN 5960-01-425-1454
NSN 6320-01-476-7702
NSN 6220-01-420-3392
NSN 6135-00-243-8330
NSN 7035-01-377-0760
NSN 6645-01-464-4937
NSN 5835-01-303-6563
NSN 6650-01-478-7301