National Stock Number
4320-00-212-4500
National Stock Number (NSN) 4320-00-212-4500, or NIIN 002124500, (vent assembly,air jack) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NSN replaces 6 stock numbers. Five of the National Stock Numbers that it replaces are: 1730002242973, 1730003083868, 1730003355449, 1730005711165, 1730006709848.
There are 7 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 11 suppliers. Today, 9 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over a year. There have been 28 contracts issued for this part number, with 33 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 7 different suppliers. The last contract numbers awarded were: SPE7M124F4087, SPE7M124F3425, SPE7M124F0958, SPE7M123F5366, SPE7M122F736W. The total value of the awarded contracts has been US$ 313,859.71.
This NSN is very common among different weapons systems, belonging to 70 different platforms.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 13,094. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 77777. This item does not have a nuclear hardened feature but does have other critical feature(s) 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 4320002124500 does not contain precious metals.
This information was last updated on Aug 01, 2025.