National Stock Number
5925-01-121-8074
National Stock Number (NSN) 5925-01-121-8074, or NIIN 011218074, (tripper,circuit breaker) was assigned November 10, 1981 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. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 30, 2010, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 04558. [AN ELECTROMECHANICAL DEVICE WHICH RELEASES THE HOLDING MECHANISM AND PERMITS THE CONTACTS OF A CIRCUIT BREAKER TO OPEN. IT IS A REPLACEMENT PART OF A CIRCUIT BREAKER. DOES NOT INCLUDE RELAYS. SEE ALSO THERMAL RELEASE, CIRCUIT BREAKER.]. 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 5925011218074 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.