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
NSN 5985-01-302-2792
NSN 7035-01-423-8343
NSN 6135-01-309-8414
NSN 5930-00-268-0323
NSN 6110-01-083-5105
NSN 6645-01-192-4079
NSN 6620-00-361-3590
NSN 5915-00-952-0594
NSN 6685-00-296-0392
NSN 6645-01-462-3754
NSN 6240-01-647-3790