National Stock Number
4940-01-646-1275
National Stock Number (NSN) 4940-01-646-1275, or NIIN 016461275, (resurfacer,commutator) was assigned July 14, 2015 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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 15, 2015, this NSN's acquisition method was noted as: Suitable for competitive acquisition for the first time. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 07521. [A PORTABLE DEVICE DESIGNED TO TRUE UP COMMUTATORS OR SLIP RINGS WITHOUT DISMANTLING. THIS DEVICE MOUNTS DIRECTLY ON THE BRUSH RIGGING OR ARM BY MEANS OF BEARING OR RIGID SUPPORTS. REPLACEABLE ABRASIVE STONES ARE MOUNTED IN A HOLDER WHICH TRAVELS ALONG ENTIRE FACE OF COMMUTATOR OR SLIP RING.]. 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 4940016461275 does not contain precious metals.
This NSN is associated to Schedule B 8503002000: commutators for machines in heading 8501 or 8502. 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.