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 5855-01-308-0955
NSN 5930-01-303-9879
NSN 5905-00-121-9938
NSN 5998-01-421-3003
NSN 6240-01-050-8306
NSN 5965-00-057-6944
NSN 5930-00-473-5311
NSN 6135-01-589-9467
NSN 6105-00-920-8655
NSN 5910-00-484-1373
NSN 5996-01-472-2112
NSN 4140-01-049-9916