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 6130-00-281-5978
NSN 5935-01-612-2329
NSN 5930-01-320-5297
NSN 2925-01-113-6904
NSN 4140-00-989-3257
NSN 5895-01-119-3942
NSN 5905-00-054-8700
NSN 6610-01-525-8235
NSN 6685-01-299-8836
NSN 5965-00-170-5254
NSN 5945-00-222-3577
NSN 6220-01-040-1406