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 4140-01-510-9380
NSN 6320-01-462-3555
NSN 5925-01-029-3483
NSN 6220-01-490-3344
NSN 5996-01-128-4811
NSN 2925-01-654-2478
NSN 5990-01-340-3575
NSN 5950-01-632-8818
NSN 6610-01-352-5500
NSN 5915-00-284-5430
NSN 5990-01-376-0405
NSN 6105-01-401-5361