National Stock Number
5935-00-057-4781
National Stock Number (NSN) 5935-00-057-4781, or NIIN 000574781, (polarizing key,electrical connector) was assigned June 1, 1967 in the Federal Logistics Information System (FLIS). NIIN 000574781 was cancelled on January 2, 2008, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5935004654562. This NSN replaces 1 stock number, 5935000656158.
There are 7 manufacturer part numbers associated with this NSN. 4 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, 5 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 assigned to Item Name Code (INC) 34709. [AN ITEM SPECIFICALLY DESIGNED TO BE PLACED IN A CONTACT LOCATION OR BETWEEN TWO ADJACENT CONTACTS OF AN ELECTRICAL PLUG OR RECEPTACLE TO PROHIBIT MISMATING OR CROSS-MATING OF CONTACTS.]. 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 5935000574781 does not contain precious metals.
This information was last updated on Aug 01, 2025.