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 5945-00-331-4765
NSN 6685-01-529-6428
NSN 4140-01-346-5557
NSN 2925-01-430-4206
NSN 6685-01-357-3642
NSN 5998-00-936-9351
NSN 6110-01-591-0045
NSN 5975-01-357-7948
NSN 5925-00-666-4753
NSN 6685-01-113-8787
NSN 6130-00-910-6505
NSN 5855-00-797-8217