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 5925-00-823-2909
NSN 6135-01-218-3660
NSN 2925-01-340-5504
NSN 6610-01-112-8137
NSN 4140-00-833-2952
NSN 5999-00-374-8869
NSN 5935-00-905-4108
NSN 5975-00-001-2758
NSN 5915-01-091-2054
NSN 5990-01-378-7349
NSN 5930-00-287-6356
NSN 5920-01-512-2054