National Stock Number (NSN) 5930-01-157-5550, or NIIN 011575550, (switch,thermostatic) was assigned July 8, 1983 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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 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.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Nov 02, 2005, 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) 00451. [A SWITCH THAT IS ACTUATED BY CHANGES IN AMBIENT TEMPERATURE. EXCLUDES:CIRCUIT BREAKER; CONTROL, TEMPERATURE (AS MODIFIED); FUSE (AS MODIFIED); PROTECTOR, THERMAL-OVERLOAD, ELECTRICAL MOTOR; RELAY, THERMAL; AND THERMOSTAT, FLOW CONTROL. SEE ALSO CONTROL, TEMPERATURE (AS MODIFIED) AND REGULATOR, TEMPERATURE (AS MODIFIED).]. 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 5930011575550 contains gold.
This NSN is associated to Schedule B 9032100000: thermostats. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334512: automatic environmental control manufacturing for residential, commercial, and appliance use.
This information was last updated on Aug 01, 2025.