National Stock Number (NSN) 5340-01-553-4666, or NIIN 015534666, (torsion bar,hinge) was assigned July 17, 2007 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 Jun 15, 2015. There have been 9 contracts issued for this part number, with 9 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE4A415VF120, SPE4A414VJ326, SPE4A414VG723, SPE4A614MF112, SPM4A610V8265. The total value of the awarded contracts has been US$ 366,114.69.
This NSN is unique to one weapons system.
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 09, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 21948. [A STRAIGHT METAL ITEM OF VARIOUS CROSS-SECTIONAL SHAPES, WITH SERRATIONS, FLATS, OR THE LIKE, ON EACH END. IT IS DESIGNED TO WITHSTAND A SEVERE TWISTING ACTION ALONG ITS LONGITUDINAL AXIS WHILE HELD FAST AT BOTH ENDS. IT IS USED IN LIEU OF A HINGE PIN AND CREATES TENSION ON A HATCH(ES), DOOR(S), GATE(S), OR THE LIKE, WHEN IN A CLOSED OR OPEN POSITION. EXCLUDES:TORSION BAR, SUSPENSION.]. 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 5340015534666 does not contain precious metals.
This information was last updated on Aug 01, 2025.