National Stock Number
4730-01-251-7999
National Stock Number (NSN) 4730-01-251-7999, or NIIN 012517999, (locknut,pipe) was assigned March 24, 1987 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
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 Apr 02, 1991, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 12802. [A HEXAGONAL OR OCTAGONAL NUT CONTAINING INTERNAL STRAIGHT PIPE THREADS. IT HAS FLAT FACES, ONE OF WHICH CONTAINS A PACKING RECESS. SEE ALSO LOCKNUT, ELECTRICAL CONDUIT; LOCKNUT, TUBE FITTING; AND SEAL NUT, PIPE.]. This item has critical features such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4730012517999 does not contain precious metals.
This information was last updated on Jul 01, 2025.