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 5920-01-088-7958
NSN 5920-01-230-9572
NSN 5945-01-270-3496
NSN 5945-00-255-7191
NSN 6240-01-212-9535
NSN 4140-01-261-2966
NSN 5930-01-410-3436
NSN 5905-01-347-5805
NSN 5855-00-879-5849
NSN 5915-00-572-2198
NSN 5985-00-097-7634
NSN 6220-01-364-9608