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 5910-00-443-2697
NSN 5950-00-143-9492
NSN 5905-01-253-4847
NSN 6150-00-219-8058
NSN 5945-01-621-1556
NSN 5835-01-087-1673
NSN 5895-00-206-7373
NSN 6240-00-865-7447
NSN 5835-00-315-3797
NSN 2925-01-608-6895
NSN 6110-01-259-3421
NSN 6145-00-478-6554