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 6620-01-167-0881
NSN 6610-01-433-0756
NSN 6105-00-189-0515
NSN 5910-01-231-8554
NSN 2925-01-580-1527
NSN 6645-01-008-2720
NSN 6110-01-044-0230
NSN 5998-01-571-6539
NSN 5985-01-505-0372
NSN 6240-00-690-2274
NSN 6150-00-104-4572
NSN 6320-01-272-7072