National Stock Number
4940-00-640-3750
National Stock Number (NSN) 4940-00-640-3750, or NIIN 006403750, (resurfacer,commutator) has an unknown assigned date. NIIN 006403750 was cancelled on September 21, 1999, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
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 critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4940006403750 does not contain precious metals.
This information was last updated on Aug 01, 2025.