National Stock Number (NSN) 5999-00-468-2055, or NIIN 004682055, (heater,thermal release) was assigned January 1, 1963 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 a year. There have been 2 contracts issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M521P0765, SPE7M519P5700. The total value of the awarded contracts has been US$ 693.50.
This NSN is fairly common among different weapons systems, belonging to 11 different platforms.
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 Mar 19, 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) 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 5999004682055 contains an unknown precious metal.
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.