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 5996-01-517-7843
NSN 5999-00-252-3207
NSN 5999-01-075-1155
NSN 5905-01-294-6568
NSN 6105-01-297-5439
NSN 5915-00-145-6181
NSN 6320-01-493-4472
NSN 6105-00-806-2695
NSN 6110-00-617-0574
NSN 5835-00-864-4481
NSN 6620-01-551-7922
NSN 6645-01-141-7737