National Stock Number (NSN) 5945-00-477-8131, or NIIN 004778131, (relay,electromagnetic) was assigned June 12, 1974 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 3 stock numbers: 5945012167245, 5945012671323, 5945009292964.
There are 17 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 9 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is 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 9 contracts issued for this part number, with 9 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 7 different suppliers. The last contract numbers awarded were: SPE7M125P0750, SPE7M124P2862, SPE7M123P1321, SPE7M122P5811, SPE7M121V5758. The total value of the awarded contracts has been US$ 18,468.37.
This NSN is fairly common among different weapons systems, belonging to 23 different platforms.
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 Apr 18, 2007, 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) 32512. [A RELAY WHICH IS ACTUATED BY THE EFFECT OF A MAGNETIC FIELD DEVELOPED BY THE CURRENT IN ITS ENERGIZING COIL(S). INCLUDES SOLENOID AND ARMATURE TYPES. EXCLUDES:CONTACTOR, MAGNETIC; RELAY, METER MOVEMENT; RELAY, MOTOR DRIVEN; RELAY, REED; RELAY, RESONANT REED; RELAY, ROTARY; AND SWITCH, STEPPING.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5945004778131 contains silver.
This NSN is associated to Schedule B 8536490050: relays, electromechanical, with contacts rated at less than 10 a, for a voltage exceeding 60 v but not exceeding 1000 v. The Schedule B End Use is listed as electric apparatus. NAICS classification category 335314: relay and industrial control manufacturing.
This information was last updated on Aug 01, 2025.