National Stock Number (NSN) 6350-01-333-2538, or NIIN 013332538, (sensor,opaque particle) was assigned January 28, 1991 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 suppliers are listed as Active suppliers 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 Jul 27, 2017. There have been 4 contracts issued for this part number, with 4 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: SPE4A417V8461, SPM4A611V1645, SPM4A611V1645, SPM4A411V0289, SPM4A609V8686. The total value of the awarded contracts has been US$ 11,880.50.
This NSN is unique to one weapons system.
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 Oct 16, 2014, 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 annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) 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. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 6350013332538 does not contain precious metals.
This NSN is associated to Schedule B 8531900002: parts of electric sound or visual signaling apparatus other than printed circuit assemblies, nesoi. The Schedule B End Use is listed as electric apparatus. NAICS classification category 335999: all other miscellaneous electrical equipment and component manufacturing.
This information was last updated on Aug 01, 2025.