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 5960-00-665-5180
NSN 6145-01-428-9571
NSN 6240-01-398-6049
NSN 6610-01-212-9817
NSN 5965-01-256-5934
NSN 6220-00-216-9504
NSN 6150-01-463-3352
NSN 5999-01-010-9809
NSN 6685-01-463-2970
NSN 5999-01-020-5001
NSN 5996-00-141-3945
NSN 5905-00-869-2872