National Stock Number (NSN) 5950-00-421-2977, or NIIN 004212977, (saturable reactor) was assigned December 7, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 6 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 7 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
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 14 contracts issued for this part number, with 14 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: SPE7M025V2654, SPE7M524V1594, SPE7M123V3959, SPE7M121V1311, SPE7M517V2592. The total value of the awarded contracts has been US$ 786,941.30.
This NSN is somewhat common among different platforms, belonging to 5 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. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 20,661. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) 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) 16192. [AN ITEM WHOSE INDUCTANCE VALUE IS CONTROLLED BY ELECTRICAL MEANS. IT DEPENDS ON THE ACTION OF THE ELECTROMAGNET FLUX PRODUCED BY THE CONTROL WINDING UPON THE EFFECTIVE PERMEABILITY OF THE CORE. IT CONTAINS TWO OR MORE WINDINGS, AT LEAST ONE OF WHICH MUST BE A CONTROL WINDING. FOR ITEMS DESIGNED TO BE USED IN CONJUNCTION WITH A RECTIFIER(S) FOR AMPLIFICATION PURPOSES, SEE AMPLIFIER, MAGNETIC.]. 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 5950004212977 contains an unknown precious metal.
This NSN is associated to Schedule B 8504500000: inductors, nesoi. The Schedule B End Use is listed as generators, accessories. NAICS classification category 334416: capacitor, resistor, coil, transformer, and other inductor manufacturing.
This information was last updated on Aug 01, 2025.