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 6130-01-413-6508
NSN 6240-01-573-6388
NSN 2925-01-327-3069
NSN 6105-00-956-9442
NSN 5855-01-340-6541
NSN 6610-00-935-7131
NSN 6135-01-555-4283
NSN 5975-00-009-8718
NSN 6685-01-361-9258
NSN 5998-00-548-3191
NSN 6220-01-131-5295
NSN 6240-01-186-0263