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 5920-01-084-1612
NSN 5920-01-359-3982
NSN 5998-01-115-3529
NSN 6620-00-782-0337
NSN 5996-00-151-4462
NSN 5990-01-310-4909
NSN 2925-01-267-1598
NSN 5855-01-428-9456
NSN 5985-00-068-8851
NSN 6320-01-123-6814
NSN 6145-01-410-8322
NSN 5930-01-026-9937