An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also locknut, pipe; nut (1), tube coupling and nut (1), plain, hexagon.
NSN 2925-01-065-0060
NSN 5985-00-849-0055
NSN 5835-01-303-6563
NSN 5935-01-132-7787
NSN 5960-01-245-6088
NSN 6145-00-683-5353
NSN 5998-01-445-9823
NSN 6135-01-329-6022
NSN 5996-01-136-9351
NSN 5930-01-132-3247
NSN 7035-01-359-7460
NSN 5905-01-467-9709