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 6610-01-269-5437
NSN 6150-01-465-8320
NSN 5975-01-502-7084
NSN 5990-01-626-2597
NSN 5925-00-906-7838
NSN 4140-01-433-3839
NSN 6105-00-981-7142
NSN 6685-01-446-9594
NSN 4140-00-924-8116
NSN 6110-01-281-5492
NSN 6150-01-505-9995
NSN 5945-01-528-6909