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 6645-01-605-1485
NSN 5965-01-542-8510
NSN 6650-01-348-5448
NSN 6145-00-663-6133
NSN 2925-01-112-8782
NSN 6610-00-911-8296
NSN 4140-00-825-7506
NSN 5985-01-169-5410
NSN 5975-01-084-9181
NSN 6220-01-330-8238
NSN 5950-01-442-8009
NSN 5855-01-330-3669