National Stock Number (NSN) 5999-00-383-2133, or NIIN 003832133, (heater,thermal release) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5999011232004.
There are 3 manufacturer part numbers associated with this NSN. One 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, 2 suppliers are 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 a year. There have been 8 contracts issued for this part number, with 8 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: SPE7MC21V039D, SPE7MC21V009L, SPE7M521P6561, SPE7M521V2407, SPE7M521V1409. The total value of the awarded contracts has been US$ 72,299.54.
This NSN is somewhat common among different platforms, belonging to 6 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 Feb 06, 2009, this NSN's acquisition method was noted as: Acquire only from the prime contractor although the engineering data identifies the Commercial and Government Entity Code (CAGE) and part number of a source other than the prime contractor. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 60584. [A RESISTIVE ELEMENT WHICH DISSIPATES SUFFICIENT HEAT TO MELT THE FUSIBLE MATERIAL OR DISTORT THE BIMETALLIC ELEMENT OF AN OVERLOAD PROTECTIVE DEVICE WHEN THE TEMPERATURE, AS A RESULT OF AN OVERLOAD IN AN ELECTRICAL CIRCUIT, REACHES A PREDETERMINED VALUE. EXCLUDES COIL (AS MODIFIED); HEATING ELEMENT, ELECTRICAL; RESISTANCE ELEMENT; RESISTOR, THERMAL; THERMAL RELEASE, CIRCUIT BREAKER; AND ITEMS WITH INTEGRAL BIMETALLIC ELEMENT, CONTACTS, OR FUSIBLE MATERIAL.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5999003832133 does not contain precious metals.
This NSN is associated to Schedule B 8543909000: electrical machines and apparatus parts, 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.