National Stock Number (NSN) 6340-01-488-4642, or NIIN 014884642, (sensor,opaque particle) was assigned August 24, 2001 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. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Dec 01, 2020. There have been 9 contracts issued for this part number, with 9 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE4A521P0802, SPE4A519P2302, SPE4A518P8902, SPE4A518P8729, SPE4A518P8729. The total value of the awarded contracts has been US$ 581,174.60.
This NSN is somewhat common among different platforms, belonging to 3 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. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 26, 2020, 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 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) 37790. [A DEVICE DESIGNED TO DETECT THE PRESENCE OF PREDETERMINED AMOUNTS OF SMOKE, DUST, AND THE LIKE, WITHIN THE MEASURING AREA. THE PRESENCE OF ANY OF THESE SUBSTANCES CAUSES A CHANGE IN THE OUTPUT SIGNAL OF THE DEVICE, WHICH RELAYS A WARNING MESSAGE BACK TO A CENTRAL PANEL. THE DEVICE ITSELF DOES NOT PROVIDE ANY AUDIBLE OR VISIBLE OUTPUT, OR ANALYZE CHEMICAL CONTENT. EXCLUDES:ALARM, SMOKE, AUTOMATIC.]. 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 6340014884642 does not contain precious metals.
This NSN is associated to Schedule B 8531100025: smoke detectors, nesoi. The Schedule B End Use is listed as photo, service industry machinery. NAICS classification category 334290: other communications equipment manufacturing.
This information was last updated on Aug 01, 2025.