An externally threaded fastening device which has an internal or external seat, designed to mate with the seat of an internally threaded tube fitting for the purpose of securing the tube to the fitting to form a leakproof connection.
NSN 4140-01-557-5790
NSN 6220-01-226-1776
NSN 5996-01-581-4160
NSN 5998-01-036-5992
NSN 6145-01-160-0129
NSN 5835-00-264-0946
NSN 6145-00-695-9568
NSN 5925-00-584-6298
NSN 5990-01-161-4625
NSN 5855-01-456-4878
NSN 6685-00-670-0895
NSN 6620-01-411-5461