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 5925-01-459-7882
NSN 4140-00-339-1514
NSN 5855-01-447-9165
NSN 5950-01-432-2038
NSN 5935-01-020-7195
NSN 6105-00-177-7996
NSN 7035-01-052-3815
NSN 5998-01-311-4313
NSN 5910-01-429-2161
NSN 6240-01-314-8245
NSN 5920-00-521-8331
NSN 6620-01-089-4416