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 5935-00-171-8837
NSN 5905-01-230-4458
NSN 6685-01-142-1969
NSN 5855-01-414-6265
NSN 5835-01-408-6529
NSN 7035-01-123-0085
NSN 6610-01-162-8258
NSN 6620-01-631-0700
NSN 4140-01-097-5229
NSN 6320-00-228-5678
NSN 5965-00-977-5658
NSN 5915-00-872-2711