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 5930-01-599-9643
NSN 6130-00-125-7409
NSN 5915-01-200-1723
NSN 5998-00-355-7986
NSN 5915-00-883-9287
NSN 6645-01-123-9277
NSN 5920-00-359-9771
NSN 6620-01-469-6826
NSN 6320-01-624-0193
NSN 6220-01-442-5466
NSN 5915-01-154-6286
NSN 5935-00-475-0208