National Stock Number
6625-00-003-9704
National Stock Number (NSN) 6625-00-003-9704, or NIIN 000039704, (atomic beam frequency standard) was assigned May 27, 1972 in the Federal Logistics Information System (FLIS). NIIN 000039704 was cancelled on August 24, 2011, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 6625007824490.
There are 4 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that 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 assigned to Item Name Code (INC) 21027. [INC 21027 CANCELLED/REPLACED BY ,INC 42641, FIIG T263-R, APP-KEY RA ,ON 011105 ~]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 6625000039704 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.