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 6645-00-442-0475
NSN 5960-00-224-6828
NSN 4140-01-647-8871
NSN 6130-01-237-9112
NSN 5996-01-342-4155
NSN 6645-01-060-7988
NSN 6645-00-218-5015
NSN 6105-01-041-8698
NSN 7035-01-198-1512
NSN 6645-00-757-5396
NSN 6685-01-100-3012
NSN 6135-01-166-7355