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 6105-01-560-4687
NSN 6240-01-437-6547
NSN 5835-01-550-5094
NSN 6685-00-887-3441
NSN 6110-00-565-5986
NSN 6320-00-360-1744
NSN 2925-00-180-2532
NSN 6610-01-643-0778
NSN 6240-01-271-6230
NSN 5945-01-516-1180
NSN 6150-01-069-3174
NSN 5915-01-394-5150