National Stock Number
6625-00-643-8553
National Stock Number (NSN) 6625-00-643-8553, or NIIN 006438553, (test set,electron tube) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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) 00797. [A TEST SET SPECIFICALLY DESIGNED FOR USE IN MAKING EXAMINATIONS OF ELECTRON TUBES, OTHER THAN CATHODE RAY TUBES AND IMAGE CONVERTER TUBES. MAY INCLUDE ADDITIONAL FACILITIES FOR MAKING ELECTRICAL CIRCUIT MEASUREMENTS. SEE ALSO TEST SET, CATHODE RAY TUBE; AND TEST SET, INFRARED IMAGE CONVERTER TUBE.]. 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 6625006438553 contains an unknown precious metal.
This NSN is associated to Schedule B 9030908030: parts and accessories of articles of schedule b subheading 9030.39. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334515: instrument manufacturing for measuring and testing electricity and electrical signals.
This information was last updated on Jul 01, 2025.