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 6145-01-157-3488
NSN 5855-00-281-3843
NSN 7035-00-849-5526
NSN 5920-00-019-9044
NSN 5835-00-804-0569
NSN 6610-00-682-6215
NSN 5905-01-051-0050
NSN 5945-00-168-8681
NSN 5935-00-865-6570
NSN 6240-00-456-6238
NSN 5985-01-392-0926
NSN 5910-01-169-8789