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 5895-01-238-2654
NSN 5996-01-306-4529
NSN 5930-00-636-8888
NSN 6610-01-207-0045
NSN 5990-01-458-1621
NSN 6105-01-145-5405
NSN 5985-01-243-1669
NSN 5975-01-577-1708
NSN 5975-00-904-6348
NSN 6135-00-474-1397
NSN 6105-00-111-2546
NSN 5925-01-083-6500