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 6145-01-397-0392
NSN 2925-00-941-3708
NSN 4140-01-480-0961
NSN 6130-01-215-6382
NSN 5920-00-954-7270
NSN 5950-00-296-5505
NSN 5999-01-457-7764
NSN 6320-01-622-5493
NSN 6145-01-469-7640
NSN 6685-01-313-4499
NSN 5905-01-501-5571
NSN 5999-01-104-4591