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 6610-01-308-6148
NSN 6650-00-412-5988
NSN 6105-00-345-4273
NSN 5950-00-530-7273
NSN 6645-01-311-9006
NSN 7035-00-347-5537
NSN 5985-00-041-0489
NSN 5920-01-517-2868
NSN 5999-01-201-1730
NSN 6130-00-459-9169
NSN 5950-01-176-2692
NSN 6685-01-500-3748