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 6110-00-569-8930
NSN 6240-01-432-5773
NSN 6135-01-363-5109
NSN 5910-01-415-3108
NSN 4140-00-522-4069
NSN 5920-01-649-3942
NSN 5925-00-576-8179
NSN 2925-00-355-5130
NSN 6240-00-138-3082
NSN 5905-01-449-0369
NSN 6650-00-369-4429
NSN 6130-00-231-3929