National Stock Number
4320-01-197-4952
National Stock Number (NSN) 4320-01-197-4952, or NIIN 011974952, (clamp,retainer,pump) was assigned December 21, 1984 in the Federal Logistics Information System (FLIS). This NSN replaces 2 stock numbers: 5340013867486, 4320011177588.
There are 7 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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, with the most recent procurement date of Apr 07, 2016. There have been 3 contracts issued for this part number, with 5 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE7M216M1332, SPM7MC13M2524, SPM76002D9732, SPM76002D9732, SPM76002D9732. The total value of the awarded contracts has been US$ 7,600.27.
This NSN is somewhat common among different platforms, belonging to 5 different weapons systems.
There has been very little 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 Sep 20, 2008, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. 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 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 4320011974952 does not contain precious metals.
This information was last updated on Jul 01, 2025.