National Stock Number (NSN) 4120-01-551-9191, or NIIN 015519191, (environmental control system) was assigned May 31, 2007 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 16 contracts issued for this part number, with 15 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE8E825P0595, SPE8E825P0595, SPE8E825P0521, SPE8E825P0518, SPE8E825P0518. The total value of the awarded contracts has been US$ 4,690,013.60.
This NSN is unique to one weapons system.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 31, 2020, this NSN's acquisition method was noted as: Acquire, for the first time, directly from the actual manufacturer rather than the prime contractor who is not the actual manufacturer. Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 67859. [A PACKAGED SYSTEM OF TWO OR MORE AIR CONDITIONER THAT PROVIDES RELIABLE HEATING AND COOLING TO PROTECT ELECTRONIC EQUIPMENT. IT INCLUDES ELECTRONIC SENSING EQUIPMENT TO AUTOMATICALLY TRANSFER POWER FROM ONE AIR CONDITIONER TO THE OTHER AND CONTROL FUNCTIONING OF THE AIR CONDITIONER UNITS. IT MAY REQUIRE EXTERNAL POWER TO OPERATE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4120015519191 does not contain precious metals.
This NSN is associated to Schedule B 8710000090: parts of armored fighting vehicles,motorized, whether or not fitted with weapons. The Schedule B End Use is listed as military trucks, armored vehicles, etc.. NAICS classification category 336992: military armored vehicle, tank, and tank component manufacturing.
This information was last updated on Jul 01, 2025.