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 5930-01-330-5752
NSN 5925-00-177-4654
NSN 5985-01-484-6697
NSN 5915-00-507-1775
NSN 6105-01-417-2174
NSN 5935-01-539-9543
NSN 5999-00-113-4615
NSN 5945-00-108-9647
NSN 5975-00-180-8255
NSN 4140-00-659-8283
NSN 6610-00-081-2365
NSN 5905-01-539-2463