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 6685-01-014-5336
NSN 6135-01-365-2707
NSN 6685-01-076-4703
NSN 5990-00-115-2374
NSN 6135-01-027-7543
NSN 5996-01-305-2738
NSN 6130-01-459-5333
NSN 5945-01-489-1773
NSN 7035-01-165-9120
NSN 5930-00-243-9417
NSN 6220-00-493-5162
NSN 5905-01-368-1085