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 6220-00-163-1183
NSN 5998-00-431-7601
NSN 6130-01-354-1851
NSN 5975-01-114-6588
NSN 6645-00-736-0476
NSN 6150-01-521-4027
NSN 2925-00-928-5931
NSN 5835-01-209-6410
NSN 5895-01-161-1706
NSN 6620-01-549-6653
NSN 5925-01-078-6673
NSN 6105-01-435-5530