National Stock Number (NSN) 6340-01-182-0533, or NIIN 011820533, (sensing element,fire detector sy) was assigned June 19, 1984 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 6350004524547.
There are 3 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 5 suppliers are deemed design controlled or valid supply parts.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 23 contracts issued for this part number, with 42 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE4A624F404P, SPE4A521F097Y, SPE4A521F097Y, SPE4A521F7249, SPE4A521F6319. The total value of the awarded contracts has been US$ 2,816,376.00.
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. The 24 month forecast from the US Government for this part number has medium volatility, with an estimated forecasted value of US$ 514,466. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 08, 2019, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 20919. [AN ITEM CONSISTING OF A PAIR OF ELECTRICAL CONDUCTORS IMBEDDED IN A SEMICONDUCTOR MATERIAL, HAVING A NEGATIVE TEMPERATURE COEFFICIENT OF RESISTANCE WHICH IS TIGHTLY ENCASED IN A SUITABLE METALLIC TUBE. THE ENDS OF THE ASSEMBLY ARE TERMINATED FOR ADAPTION IN A FIRE DETECTOR SYSTEM.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6340011820533 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 Jul 01, 2025.