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 6105-01-300-2444
NSN 5965-01-311-8509
NSN 6135-00-246-0324
NSN 5915-01-418-0265
NSN 5950-01-529-6542
NSN 5935-00-957-2400
NSN 5915-01-384-9754
NSN 5920-00-151-4039
NSN 5985-01-252-2467
NSN 5985-00-914-3945
NSN 5975-00-111-3208
NSN 6610-01-425-1523