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 6240-01-611-7090
NSN 6645-01-459-1499
NSN 6320-01-652-3806
NSN 5945-00-226-0131
NSN 5999-00-288-3143
NSN 6135-00-451-0709
NSN 5930-01-203-7126
NSN 5945-00-923-4291
NSN 5950-01-441-8711
NSN 6240-01-535-6520
NSN 5920-00-073-1528
NSN 5950-01-589-2148