National Stock Number
5999-99-411-3868
National Stock Number (NSN) 5999-99-411-3868, or NIIN 994113868, (heat sink-insulator) has an unknown assigned date. 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, 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 somewhat common among different platforms, belonging to 3 different weapons systems.
This NSN is assigned to Item Name Code (INC) 39324. [AN ITEM SPECIFICALLY DESIGNED TO BE THERMALLY CONDUCTIVE AND ELECTRICALLY INSULATING. FOR ITEMS DESIGNED TO DISSIPATE HEAT ONLY, SEE HEAT SINK, ELECTRICAL-ELECTRONIC COMPONENT. FOR ITEMS DESIGNED TO INSULATE ONLY, SEE INSULATOR (1) (AS MODIFIED).].
This information was last updated on Aug 22, 2025.