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 6220-00-079-0178
NSN 6135-00-100-8890
NSN 5985-00-683-2188
NSN 6135-00-269-5843
NSN 5999-00-890-0722
NSN 4140-01-152-1214
NSN 6645-00-790-0944
NSN 5999-01-417-2834
NSN 5855-00-483-0020
NSN 6150-01-069-2039
NSN 5910-01-626-4607
NSN 7035-01-462-5766