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 5935-01-304-3338
NSN 5945-01-421-1808
NSN 4140-01-287-4863
NSN 6145-01-538-7185
NSN 4140-00-097-0167
NSN 5915-00-005-7140
NSN 5910-01-626-8155
NSN 6685-01-413-6487
NSN 5985-00-919-5525
NSN 5998-01-384-4004
NSN 5910-00-254-8169
NSN 5960-01-505-2426