National Stock Number
5340-01-559-4379
National Stock Number (NSN) 5340-01-559-4379, or NIIN 015594379, (snap hook) was assigned December 18, 2007 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 6 contracts issued for this part number, with 6 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE7L122P9487, SPE7L722P2045, SPE5EK19P2540, SPE5EK18P2723, SPE5EK17P0661. The total value of the awarded contracts has been US$ 2,981.53.
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. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Feb 09, 2016, 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 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) 16954. [A METAL OR PLASTIC FASTENING DEVICE ONE OR BOTH ENDS OF WHICH ARE HOOK SHAPED WITH A CLOSING OR LOCKING DEVICE OVER THE THROAT OPENING WHICH IS HELD BY SPRING ACTION. IF HOOK SHAPED ON ONE END ONLY THE OPPOSITE END IS PROVIDED WITH A FIXED, LOOSE, OR SWIVEL LOOP OR OPENING FOR CONNECTING TO ANOTHER ITEM. EXCLUDES: CARGO HOOKS WITH SAFETY DEVICES.]. 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 5340015594379 does not contain precious metals.
This information was last updated on Aug 01, 2025.