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 5975-00-056-8600
NSN 6145-01-523-5046
NSN 5910-01-216-6768
NSN 5910-00-605-6939
NSN 6685-01-414-8811
NSN 5915-01-220-1641
NSN 5999-01-244-3448
NSN 5915-00-054-6637
NSN 5905-01-440-1004
NSN 5999-00-364-0769
NSN 2925-01-551-5375
NSN 5855-00-797-8217