Used on grumman a10 aircraft
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 5950-01-003-3281
NSN 5835-01-143-9143
NSN 5990-00-295-7068
NSN 5975-01-008-0806
NSN 5855-00-797-8217
NSN 6145-00-950-9017
NSN 5895-01-569-6185
NSN 5990-01-040-1320
NSN 5855-00-482-9876
NSN 6240-01-364-2305
NSN 5998-01-240-0634
NSN 5985-01-483-8766