National Stock Number
4520-00-691-9650
National Stock Number (NSN) 4520-00-691-9650, or NIIN 006919650, (adapter,air conditioning-heating) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 006919650 was cancelled on May 2, 1999, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4520006041671. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
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 4520006919650 does not contain precious metals.
This information was last updated on Aug 01, 2025.