Hex diameter is 19mm; thread size is 9/16-18 both
A fitting that forms an angle of less than 180 degrees (3.141 radians) from a straight flow. Both connecting ends have machine threads (straight threads other than pipe or hose series) designed to accommodate a tube or is unthreaded and designed to accommodate a tube. It may have side or heel inlet(s). See also elbow, pipe and connector, multiple, fluid pressure line.
NSN 5975-01-397-1346
NSN 6130-01-400-6123
NSN 6145-00-725-5971
NSN 5935-01-013-7773
NSN 5965-01-468-6186
NSN 6130-01-391-8702
NSN 6135-00-793-1809
NSN 6145-01-189-5945
NSN 5915-01-225-8931
NSN 4140-00-057-2785
NSN 6145-01-495-5425
NSN 5835-01-059-5535