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 5930-01-112-0487
NSN 6620-00-880-1361
NSN 5965-01-123-3770
NSN 5835-00-419-6576
NSN 6130-01-330-4875
NSN 6105-00-950-0747
NSN 5960-01-391-8860
NSN 5910-01-038-4391
NSN 6110-00-387-3911
NSN 2925-01-472-4423
NSN 6150-01-501-6100
NSN 6135-01-364-2738