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 5990-01-492-6575
NSN 5855-01-231-4945
NSN 5835-01-426-6573
NSN 5915-01-536-3585
NSN 2925-01-500-3300
NSN 6105-00-912-3744
NSN 6650-01-072-3698
NSN 5960-01-632-6576
NSN 6135-01-415-4124
NSN 6135-00-838-7008
NSN 5975-01-205-1843
NSN 5960-01-251-8615