This item is a flight safety critical aircraft part (fscap).
A part basically circular in shape, designed to cover or seal the filler-neck or inlet opening of a fuel tank, radiator, oil reservoir, liquid storage tank or the like. It may be either permanently attached to the object for which it is designed or provided with a means of removal and replacement. Excludes cap, vent, fuel storage tank; and cover (1), (as modified).
Classification: Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)
NSN 6620-00-943-8020
NSN 5910-01-555-1502
NSN 6620-01-594-1833
NSN 7035-01-396-3343
NSN 5935-01-551-9694
NSN 5835-01-160-7282
NSN 5965-01-523-4572
NSN 5945-01-066-5001
NSN 5999-01-501-6531
NSN 6645-00-758-4567
NSN 6110-01-394-9891
NSN 5996-00-918-2004