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 5920-01-167-8908
NSN 6105-01-090-8123
NSN 5985-01-631-4274
NSN 5996-00-067-3652
NSN 5998-00-277-7552
NSN 5996-00-200-5610
NSN 2925-00-155-2100
NSN 5835-00-147-9328
NSN 5910-00-255-5679
NSN 6150-00-988-5768
NSN 5855-00-862-3345
NSN 6620-01-138-8250