Summary Information (click on this NSN number for detailed information: 4730-00-001-1695)
Tube Tee, also referenced with federal logistics item name code 3809:
A fitting having three connections with the branch connection fixed at 90 degrees (1.5705 radians) to the run. the connections have machine threads (straight threads other than pipe or hose series) designed to accommodate a tube, or are unthreaded and designed to accommodate a tube. it may have side inlet(s). it is used as a junction at the intersection of a tube or tube fitting.