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 6150-01-039-4911
NSN 5855-00-911-1370
NSN 6645-01-142-1707
NSN 5835-00-540-9669
NSN 6650-01-511-5262
NSN 6645-01-607-7931
NSN 6685-01-287-8062
NSN 5985-00-518-1748
NSN 5925-01-313-7188
NSN 5910-00-691-6441
NSN 6145-01-266-4105
NSN 5855-01-245-8689