National Stock Number
4920-00-915-4637
National Stock Number (NSN) 4920-00-915-4637, or NIIN 009154637, (test set,environmental control s) was assigned July 8, 1966 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2019, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 41644. [A TEST SET DESIGNED TO MAKE EXAMINATIONS OF ENVIRONMENTAL CONTROL SYSTEMS SUCH AS AIR CONDITIONING, HEATING, PRESSURIZATION, AND THE LIKE, WHICH AFFECT THE INTERIOR OF AN AIRCRAFT.]. Item has not been reviewed for Flight Safety Critical Aircraft Part (FSACP), Critical Safety Item (CSI), or Critical Application Item (CAI) purposes by an approved engineering authority. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4920009154637 does not contain precious metals.
This information was last updated on Aug 01, 2025.