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 7035-00-096-9986
NSN 6685-00-553-8733
NSN 5930-01-265-0327
NSN 6610-01-416-2738
NSN 6685-01-357-7606
NSN 6135-01-579-3534
NSN 2925-00-918-0859
NSN 5895-01-172-1782
NSN 5895-00-919-0684
NSN 5930-00-406-9170
NSN 6240-01-389-8584
NSN 6135-00-962-4110