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 6220-01-382-7997
NSN 5999-01-327-3560
NSN 6320-01-160-7757
NSN 5950-00-400-8694
NSN 6110-01-056-4964
NSN 7035-01-526-6775
NSN 6645-00-155-2398
NSN 5950-00-468-3650
NSN 4140-01-432-0292
NSN 5945-01-474-4335
NSN 6620-01-180-5209
NSN 6135-00-519-1325