National Stock Number
1615-01-224-4853
National Stock Number (NSN) 1615-01-224-4853, or NIIN 012244853, (transmission,mechanical,helicopter) was assigned January 17, 1986 in the Federal Logistics Information System (FLIS). NIIN 012244853 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 52149. [A DEVICE USED ON HELICOPTERS DESIGNED TO INCREASE, DECREASE, AND/OR REVERSE THE ROTATION BETWEEN THE DRIVE AND DRIVEN SHAFT OR SHAFTS. IT MAY OR MAY NOT INCLUDE THE SHIFTING CONTROL MECHANISM WHICH CHANGES RATIOS AND/OR DIRECTION OF ROTATION. EXCLUDES TRANSMISSION,CROSS-DRIVE AND TRANSMISSIONS WITH CONTROLLED DIFFERENTIALS.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1615012244853 does not contain precious metals.
This information was last updated on Aug 01, 2025.