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 5925-00-286-8502
NSN 6135-01-032-8887
NSN 5930-00-960-4826
NSN 5925-01-306-9601
NSN 6645-00-786-6864
NSN 6320-01-431-4359
NSN 5950-01-156-5731
NSN 5895-00-578-8424
NSN 6145-01-537-1761
NSN 5990-01-188-7309
NSN 5975-01-069-2196
NSN 5998-00-155-9929