National Stock Number
5925-01-651-1979
National Stock Number (NSN) 5925-01-651-1979, or NIIN 016511979, (locking device,circuit breaker) was assigned January 8, 2016 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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, with the most recent procurement date of Nov 09, 2018. There have been 2 contracts issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M519P1521, SPE7MC17F0016. The total value of the awarded contracts has been US$ 3,112.20.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 09, 2020, this NSN's acquisition method was noted as: Acquire, for the first time, directly from the actual manufacturer rather than the prime contractor who is not the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 50091. [AN ITEM OF VARIOUS SHAPES, HAVING AN INTEGRAL LOCKING DEVICE OR FACILITIES TO ACCOMMODATE AN EXTERNAL LOCKING DEVICE, WHICH IS DESIGNED TO PREVENT UNAUTHORIZED ACTUATION OF A CIRCUIT BREAKER. EXCLUDES ITEMS DESIGNED TO PROTECT THE ACTUATOR FROM DAMAGE OR INADVERTANT THROWING, SEE GUARD, SWITCH.]. 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 5925016511979 does not contain precious metals.
This NSN is associated to Schedule B 8538907020: automatic circuit breaker parts for headings 8535, 8536 or 8537. The Schedule B End Use is listed as electric apparatus. NAICS classification category 335313: switchgear and switchboard apparatus manufacturing.
This information was last updated on Aug 01, 2025.