The item is a flight safety critical aircraft part (fscap).
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: Washers other than lock washers, iron or steel
NSN 5998-01-466-4417
NSN 5990-00-139-3155
NSN 5985-00-832-2479
NSN 6240-00-419-4301
NSN 6320-01-652-3806
NSN 6130-00-999-1116
NSN 6105-01-536-1414
NSN 5998-01-429-9430
NSN 6110-01-445-6042
NSN 5915-00-256-8817
NSN 5985-01-238-6764
NSN 5910-00-302-5330