Used on fldg boom, crane assembly. 2a 2nd end thread class 12 1st end thread quantity per inch passivate surface treated threaded external rigid, threaded internal swivel un 1st end thread series
tube end reducer length is 1.630 inch; male thread end is 0.562-18 unf-2a, female thread end is 0.750-16 unf-2b passivate surface treated unf 2nd end thread series
Used on hh/uh1 helicopter. 3a 2nd end thread class 18 2nd end thread quantity per inch fitting, union, standard wrenching facility distance across flats .802 to .815 anodize surface treated unjf 2nd end thread series
Used on mq-8b vertical takeoff and landing unmanned aerial vehicle,vtuav. navy air data fitting material:brass; reducing union; 3/16in. x 1/8in. tube od