National Stock Number
2920-01-107-5129
National Stock Number (NSN) 2920-01-107-5129, or NIIN 011075129, (cutout relay,engine generator) was assigned February 7, 1981 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5945006785955.
There are 6 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 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. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
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 Sep 01, 2020, 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 Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 17181. [A DEVICE FOR AUTOMATICALLY OPENING THE CIRCUIT BETWEEN AN ENGINE GENERATOR AND THE BATTERY OF THE ENGINE ELECTRICAL SYSTEM TO PREVENT THE FLOW OF REVERSE CURRENT TO THE GENERATOR AND AUTOMATICALLY CLOSING THE CIRCUIT WHEN THE VOLTAGE OF THE GENERATOR REACHES NORMAL RANGE. EXCLUDES:REGULATOR, CURRENT AND RELAY (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 data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2920011075129 contains an unknown precious metal.
This NSN is associated to Schedule B 8511908000: internal combustion engine parts, nesoi. The Schedule B End Use is listed as engines and engine parts (carburetors, pistons, rings, and valves.
This information was last updated on Aug 01, 2025.