The item is threded intrnal with 1.25-18nef
No other part numbers with same form, fit, and function found.
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: Crown corks (including crown seals and caps), and parts thereof, of base metal
NSN 6320-00-994-0179
NSN 5999-01-363-9399
NSN 5990-01-332-6722
NSN 5915-00-149-8573
NSN 2925-01-408-9485
NSN 6620-01-197-7665
NSN 5905-01-420-6196
NSN 5935-01-168-1111
NSN 6650-00-868-9092
NSN 6130-00-185-3056
NSN 5950-01-293-5074
NSN 6105-01-132-9267