National Stock Number (NSN) 5340-01-283-4056, or NIIN 012834056, (turnbuckle) was assigned August 5, 1988 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 6 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are deemed design controlled or valid supply parts.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 12 contracts issued for this part number, with 12 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 7 different suppliers. The last contract numbers awarded were: SPE7L025V1488, SPE7L124V5688, SPE7L323F8097, SPE7L322F163B, SPE7L322F026T. The total value of the awarded contracts has been US$ 65,851.96.
This NSN is somewhat common among different platforms, belonging to 2 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. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 16,586. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 17, 2013, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
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 5340012834056 does not contain precious metals.
This information was last updated on Aug 01, 2025.