4720-00-014-6831 (DMS1656X1ID)
NSN 4720-00-014-6831 (NIIN 00-014-6831) is an air duct hose in Federal Supply Class 4720, Hose And Flexible Tubing — a flexible, tubular item of light wall construction. Manufacturer part number DMS1656X1ID (The Boeing Company, CAGE 88277); also referenced as 1010J (Arrowhead Products Corp).
NIIN assigned May 1968; DEMIL A (none required); unit of issue LG (length), $47.95 gov standard price.