National Stock Number (NSN) 5970-00-333-3566, or NIIN 003333566, (insulator,feedthru) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 3 stock numbers: 5970002261611, 5970002848693, 5970005672716.
There are 6 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 8 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers 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 2 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 02, 2004, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 18284. [AN INSULATOR WHICH IS SPECIFICALLY DESIGNED TO PROVIDE FOR THE PASSAGE OF ELECTRICAL CONDUCTORS THROUGH SUCH ITEMS AS PANELS, BULKHEADS, WALLS, AND THE LIKE. IT CONSISTS OF TWO OR MORE INSULATORS, INCLUDING ONE OR MORE STUDS FED THROUGH THE ITEMS IN SUCH A WAY AS TO BE USED AS CONDUCTORS. THE STUDS MAY BE USED FOR MOUNTING. SEE ALSO INSULATOR, BOWL; AND TERMINAL, FEEDTHRU, INSULATED.]. 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 5970003333566 does not contain precious metals.
This NSN is associated to Schedule B 8546900000: electrical insulators, nesoi. The Schedule B End Use is listed as electric apparatus. NAICS classification category 326199: all other plastics product manufacturing.
This information was last updated on Aug 01, 2025.