Used on various land systems. 90 degree swivel male elbow ref. sae no. AA02dd. use with weatherhead NT100 air brake tubing (sae J844) . male pipe thread: 1/2. hex is 7/8. npt 1st end thread series
Used on 2350-01-390-4683. 2a 1st end thread class elbow, pipe to tube, 45 degree, male pipe end, 37 degree male pipe threads are dryseal american standard taper pipe threads (nptf) , size 0.500" ; inside dia both ends is 0.484" passivate surface treated unf 1st end thread series
Used on aircraft, sof (ac-130h, mc-130h, ec-130e, hc-130) support eqmt. coupler, elbow male-male, 1/8" nptm; nha: fuel burner assy for bear model 130k heater
angle of elbow is 90.0 degrees; connection style on 1st end is 111a (insert, pipe) connection style on 2nd end is 100b (threaded external plain tube) elbow nptf 2nd end thread series