National Stock Number
4320-01-121-8104
National Stock Number (NSN) 4320-01-121-8104, or NIIN 011218104, (ring,seat,discharge) was assigned November 10, 1981 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. One of those 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 a year. There have been 9 contracts issued for this part number, with 10 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M123P5929, SPE7M122P7102, SPE7M122P1670, SPE7M119P8126, SPE7MC19V9183. The total value of the awarded contracts has been US$ 88,953.62.
This NSN is somewhat common among different platforms, belonging to 5 different weapons systems.
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$ 13,536. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Oct 15, 2011, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 77777. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4320011218104 does not contain precious metals.
This information was last updated on Aug 01, 2025.