National Stock Number (NSN) 5340-00-187-8184, or NIIN 001878184, (turnbuckle) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5340007588239.
There are 5 manufacturer part numbers associated with this NSN. 2 of those 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. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Nov 01, 2016. There have been 3 contracts issued for this part number, with 3 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE5EM17V0665, SPE5EM17V0665, SPE5E016V1079, SPE5E016V1079, SPE5EM15V2764. The total value of the awarded contracts has been US$ 9,606.80.
This NSN is somewhat common among different platforms, belonging to 4 different weapons systems.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 00502. [A METAL LOOP, SLEEVE, OR SOLID BODY WITH END PULLS, HAVING BOTH ENDS THREADED OR ONE END THREADED AND THE OTHER END DESIGNED TO ACCOMMODATE A SWIVEL. ITEMS WITH BOTH ENDS THREADED SHALL HAVE RIGHT HAND SCREW THREADS ON ONE END AND LEFT HAND SCREW THREADS ON THE OTHER. IT MAY INCLUDE LOCK NUTS, CHECK NUTS, JAM NUTS, AND/OR TERMINAL ATTACHMENT(S) SUCH AS HOOKS, RINGS, AND THE LIKE. IT IS DESIGNED TO REGULATE THE DISTANCE (TAKE-UP) BETWEEN TWO POINTS BY TURNING. SEE ALSO PELICAN HOOK AND TURNBUCKLE ASSEMBLY; AND TIE ROD, TENSIONING, THREADED END.]. 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 5340001878184 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.