National Stock Number
5930-00-449-6921
National Stock Number (NSN) 5930-00-449-6921, or NIIN 004496921, (switch,thermostatic) was assigned December 8, 1969 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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 5 years.
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. 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) 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 5930004496921 contains an unknown precious metal.
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.