3441-00-585-1723 (506)
NSN 3441-00-585-1723 (NIIN 00-585-1723) is a tube expander in Federal Supply Class 3441, Bending And Forming Machines — a tool used on closed sided and/or hollow metal parts to form precise shapes and dimensions by systems of dies which expand outward and stretch the metal. Manufacturer part number 506.
NIIN assigned January 1963; DEMIL A (none required).