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 2925-00-640-8611
NSN 6150-01-174-7321
NSN 5915-01-299-9613
NSN 5835-01-027-7564
NSN 6110-00-185-8147
NSN 6620-01-053-6650
NSN 5950-01-304-6558
NSN 5930-01-396-2024
NSN 5905-01-152-7987
NSN 6145-00-880-8720
NSN 6320-00-313-9114
NSN 2925-01-600-2309