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 5835-01-170-0271
NSN 6145-01-147-0840
NSN 5855-01-611-5768
NSN 5945-01-415-6478
NSN 5930-01-602-0779
NSN 5975-01-629-9491
NSN 5915-01-343-8389
NSN 5915-00-960-4786
NSN 6645-01-549-0935
NSN 5905-01-408-5991
NSN 6645-01-550-7391
NSN 5925-01-502-2060