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 4140-01-515-2722
NSN 6220-00-196-2949
NSN 6240-00-832-6867
NSN 5950-00-224-2079
NSN 5965-01-422-9770
NSN 7035-01-574-2528
NSN 5960-01-223-6202
NSN 6645-01-566-3205
NSN 6645-00-912-0248
NSN 5998-00-601-6625
NSN 5925-00-432-9460
NSN 5990-00-415-5351