National Stock Number (NSN) 1650-01-655-4537, or NIIN 016554537, (plunger,detent) was assigned May 27, 2016 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated 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 5 years, with the most recent procurement date of Dec 13, 2019. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A720P3416. The total value of the awarded contracts has been US$ 636.26.
This NSN is somewhat common among different platforms, belonging to 2 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 05, 2019, 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) 60828. [A METALLIC ITEM, SOLID OR TUBULAR, HAVING ONE CLOSED END FORMED TO FIT INTO A SHALLOW RECESS OR GROOVE, OR HAVING A FLAT OR CONCAVE SURFACE USED TO EXERT PRESSURE AGAINST A COMPONENT PART. IT IS DESIGNED FOR USE WITH A SPRING, HELICAL, COMPRESSION, WHICH EXERTS PRESSURE TO HOLD A SHAFT, PIN, OR THE LIKE, IN A SEMIRIGID POSITION IN HOUSINGS OR OTHER MECHANICAL DEVICES. DOES NOT HAVE INTERNAL OR EXTERNAL THREADS. EXCLUDES:PLUNGER, QUICK RELEASE. FOR ELECTRICAL ITEMS, SEE DETENT, SWITCH AND PLUNGER, SOLENOID. SEE ALSO CATCH, FRICTION.]. 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 1650016554537 does not contain precious metals.
This NSN is associated to Schedule B 8803300060: other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof). The Schedule B End Use is listed as parts for military-type goods. NAICS classification category 336413: other aircraft parts and auxiliary equipment manufacturing.
This information was last updated on Aug 01, 2025.