National Stock Number
6630-00-446-3717
National Stock Number (NSN) 6630-00-446-3717, or NIIN 004463717, (comparator,metal) was assigned December 28, 1970 in the Federal Logistics Information System (FLIS). NIIN 004463717 was cancelled on April 30, 2010, 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 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, 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.
This NSN is assigned to Item Name Code (INC) 18983. [AN INSTRUMENT FOR COMPARING THE DIFFERENCES IN CHEMICAL COMPOSITIONS OF TWO METALS OR METAL ALLOYS BY BRINGING THE TWO TOGETHER AT A POINT AND RAISING OR LOWERING THE TEMPERATURE AT THE POINT OF CONTACT SO THAT A THERMAL ELECTROMOTIVE FORCE IS SET UP WHEN TWO METALS ARE DISSIMILAR. THE MAGNITUDE OF THE THERMAL ELECTROMOTIVE FORCE WILL INDICATE THE DEGREE OF DISSIMILARITY.]. 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 6630004463717 does not contain precious metals.
This information was last updated on Jul 01, 2025.