Fleet ballistic missile quality, as identified by quality control no. Poso 909170
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 6130-01-428-3290
NSN 6145-00-482-9546
NSN 5950-01-656-6171
NSN 6150-00-823-5590
NSN 6320-01-157-4400
NSN 4140-01-024-1332
NSN 5945-01-092-9951
NSN 4140-00-905-6570
NSN 5990-00-905-9556
NSN 5945-01-603-3427
NSN 6145-01-160-7658
NSN 4140-01-384-1735