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 6220-00-827-0227
NSN 6220-01-256-6400
NSN 6685-01-506-1860
NSN 6645-00-244-0359
NSN 5999-00-525-3995
NSN 5920-00-156-4482
NSN 6220-01-139-3520
NSN 6645-00-867-0400
NSN 5935-01-493-1721
NSN 5965-01-381-4879
NSN 6645-01-425-2330
NSN 5910-01-593-7370