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 5990-01-369-6915
NSN 6130-01-411-6674
NSN 6150-01-003-0706
NSN 6135-01-559-1578
NSN 5985-01-544-0257
NSN 2925-01-133-8128
NSN 5855-01-388-2424
NSN 6685-00-058-1016
NSN 5998-01-340-9093
NSN 6320-01-547-2743
NSN 5960-01-649-1341
NSN 6610-01-353-9326