National Stock Number
4520-01-374-0278
National Stock Number (NSN) 4520-01-374-0278, or NIIN 013740278, (adapter,air conditioning-heating) was assigned April 14, 1993 in the Federal Logistics Information System (FLIS). NIIN 013740278 was cancelled on August 24, 2011, 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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. 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.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 33667. [A FITTING, TUBULAR AT ONE END AND OTHER THAN TUBULAR AT THE OTHER END. IT IS USED TO CONNECT TWO SECTIONS OF AIR CONDITIONING-HEATING PIPE OR TO CONNECT AIR CONDITIONING-HEATING PIPE TO AIR CONDITIONING-HEATING UNITS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4520013740278 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.