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 5950-00-587-4956
NSN 5975-01-215-6142
NSN 6220-01-542-1344
NSN 6240-00-617-9599
NSN 5930-01-578-9730
NSN 6150-01-545-2825
NSN 5999-01-660-5296
NSN 5835-01-352-6725
NSN 6610-00-594-6372
NSN 5998-01-221-8609
NSN 5985-01-564-5568
NSN 5925-00-903-5841