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 5960-00-993-1857
NSN 6220-00-111-7756
NSN 6645-00-803-6417
NSN 5905-00-372-5214
NSN 5990-01-421-5342
NSN 6150-00-369-9116
NSN 5935-01-634-0668
NSN 5920-00-876-8989
NSN 5950-01-342-2794
NSN 6145-00-170-6467
NSN 6105-00-539-0393
NSN 7035-01-432-2424