National Stock Number
5998-00-421-8129
National Stock Number (NSN) 5998-00-421-8129, or NIIN 004218129, (extender card,electronic test) was assigned December 11, 1970 in the Federal Logistics Information System (FLIS). NIIN 004218129 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 is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. 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) 62400. [AN ITEM CONSISTING OF A HAND WIRED OR PRINTED WIRING BOARD, WITH OR WITHOUT A RETAINING PLATE, RAILS, BRACKETS, OR ELECTRICAL CONNECTOR(S) WHICH IS DESIGNED TO PROVIDE ACCESS TO A CIRCUIT CARD ASSEMBLY OR ELECTRONIC COMPONENTS ASSEMBLY FOR TESTING, TEST POINT CHECKING AND TROUBLESHOOTING.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5998004218129 does not contain precious metals.
This information was last updated on Aug 01, 2025.