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 6135-01-273-1253
NSN 5930-01-351-0189
NSN 5945-00-961-2767
NSN 5915-00-203-2859
NSN 5920-00-473-0563
NSN 6645-01-089-5522
NSN 5925-01-071-3158
NSN 7035-01-487-6481
NSN 6620-00-981-6958
NSN 6145-01-273-6345
NSN 5935-01-401-5324
NSN 5975-01-271-9027