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 5905-01-481-4413
NSN 5910-00-988-2760
NSN 5835-01-132-5894
NSN 6135-00-315-1187
NSN 7035-00-420-8318
NSN 6610-01-106-5012
NSN 5960-01-223-1203
NSN 6130-00-578-0869
NSN 5930-01-348-8681
NSN 6320-00-725-0754
NSN 6150-01-210-2073
NSN 5920-01-395-8699