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 6320-01-342-4884
NSN 5999-00-968-3619
NSN 6220-01-371-1791
NSN 6150-00-954-2894
NSN 4140-01-435-4887
NSN 6610-01-641-4191
NSN 6685-00-081-7708
NSN 5990-00-351-5479
NSN 6320-00-831-2227
NSN 7035-01-621-0097
NSN 5855-01-020-7982
NSN 6150-01-060-7589