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 5910-00-230-8982
NSN 5920-01-156-7588
NSN 5998-01-268-3967
NSN 5950-01-627-9228
NSN 6320-00-336-9123
NSN 5950-01-012-3097
NSN 6135-01-578-1148
NSN 5930-00-859-8253
NSN 4140-00-247-4773
NSN 5960-01-454-7064
NSN 6130-01-106-3410
NSN 6320-01-631-7828