National Stock Number
6635-00-477-5377
National Stock Number (NSN) 6635-00-477-5377, or NIIN 004775377, (comparator,optical projection) has an unknown assigned date. NIIN 004775377 was cancelled on September 19, 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) 18990. [AN INSTRUMENT DESIGNED TO INSPECT OR MEASURE, BY OPTICAL PROJECTION, THE WEAR, TOLERANCE OR DISTORTION OF AN ITEM WHICH IS DIFFICULT OR IMPOSSIBLE TO INSPECT OR MEASURE DIRECTLY.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6635004775377 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.