National Stock Number
2920-01-018-4989
National Stock Number (NSN) 2920-01-018-4989, or NIIN 010184989, (armature assembly) was assigned March 29, 1976 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 6105012129580.
There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. 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, with the most recent procurement date of Dec 21, 2018. There have been 5 contracts issued for this part number, with 11 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE4A519F031M, SPE4A519F031M, SPE4A519F031M, SPE4A518F520U, SPE7LX18F2121. The total value of the awarded contracts has been US$ 1,198,436.82.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 20, 2008, 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) 38762. [THE ROTATING PART OF AN ELECTRICAL ROTATING MACHINE WHICH CONSISTS OF THE ARMATURE (AS MODIFIED) AND BEARINGS MOUNTED ON A COMMON SHAFT.]. 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 2920010184989 does not contain precious metals.
This NSN is associated to Schedule B 8503005000: electric motor parts, other than commutators. The Schedule B End Use is listed as generators, accessories. NAICS classification category 335312: motor and generator manufacturing.
This information was last updated on Aug 01, 2025.