National Stock Number (NSN) 5340-01-681-3491, or NIIN 016813491, (coupling,clamp,grooved) was assigned June 13, 2019 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. None of the associated 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.
This part number has not been procured by the US Government in over a year. 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 2 different suppliers. The last contract numbers awarded were: SPEHA621P0093, SPE5E221F0026, SPE5E221F0026, SPE5EJ20F0141, SPE5EJ20F0141. The total value of the awarded contracts has been US$ 44,328.80.
This NSN is unique to one weapons system.
There has been very little 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 Sep 21, 2019, this NSN's acquisition method was noted as: Acquire, for the first time, directly from the actual manufacturer rather than the prime contractor who is not the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 20319. [A METAL LOOP HAVING EITHER A V OR U CROSS SECTION OR CHANNELLED SEGMENT(S). IT MAY BE ATTACHED TO A FLAT BAND. IT IS DESIGNED TO CREATE A FLUID TIGHT JOINT AND/OR CONNECT PIPE, TUBING, TANK COVER(S), DUCT(S) AND THE LIKE, BY MATING WITH FLANGED OR BEADED FERRULE(S), FLARED, OR BEADED ENDS. IT MAY OR MAY NOT HAVE A SEALING INNER LINER. A LATCH OR LATCHES OF THE QUICK COUPLING TYPE, NUT OR BOLT TYPE, OR THREADED TRUNNION TYPE IS (ARE) USED TO LOCK AND ADJUST THE BAND. EXCLUDES:COUPLING, CLAMP, PIPE AND RING, LOCKING, METAL DRUM COVER.]. 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 5340016813491 does not contain precious metals.
This information was last updated on Jul 01, 2025.