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 5835-01-515-6537
NSN 6135-00-284-1406
NSN 6220-01-167-0516
NSN 6240-01-141-3625
NSN 5910-01-608-9380
NSN 5960-01-148-4424
NSN 2925-01-589-4880
NSN 6685-01-314-5313
NSN 6105-01-146-0158
NSN 6110-01-190-8290
NSN 5990-01-516-9665
NSN 2925-01-379-0903