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 5935-00-584-3733
NSN 5990-01-446-5546
NSN 6645-01-421-4007
NSN 5855-00-494-9581
NSN 6645-00-016-0594
NSN 5985-01-288-7268
NSN 5920-01-340-6950
NSN 6150-00-730-3256
NSN 5998-01-238-2940
NSN 5895-01-521-1746
NSN 5998-00-199-8143
NSN 6150-00-812-8145