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 5996-01-023-8370
NSN 5985-01-451-2115
NSN 2925-00-816-8765
NSN 6620-00-460-1774
NSN 6650-01-027-9879
NSN 5835-00-484-1529
NSN 6650-01-397-8856
NSN 5895-01-552-8875
NSN 5945-00-270-1474
NSN 4140-00-980-7251
NSN 5910-00-764-9408
NSN 5975-00-869-3749