National Stock Number (NSN) 5340-00-047-2521, or NIIN 000472521, (clip,retaining) was assigned January 1, 1963 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 has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A521F167T, SPE4A521F167T, SPE4A521F167T, SPE4A521F167T. The total value of the awarded contracts has been US$ 119,071.68.
This NSN is somewhat common among different platforms, belonging to 8 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 02, 2005, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 02385. [A CLIP FORMED FROM RESILIENT WIRE STOCK INTO A SHAPE RESEMBLING THE LETTER U, WITH EACH OF THE PRONGS HAVING ONE OR MORE CURVATURES ALONG ITS LENGTH. IT IS DESIGNED TO HOLD ITSELF IN PLACE BY ITS INHERENT SPRING ACTION WHEN FITTED INTO THE GROOVE(S) OR NOTCH(ES) OF THE ITEM UPON WHICH A PART, SHAFT, PIN, OR A LIKE ITEM IS TO BE HELD IN PLACE. SEE ALSO PIN, LOCK; RING, RETAINING AND CLIP, SPRING TENSION. FOR ITEMS SPECIFICALLY DESIGNED FOR AVIATON, SEE CLIP(1), RETAINING, AVIATION.]. 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 5340000472521 contains an unknown precious metal.
This NSN is associated to Schedule B 7318290000: other non-threaded articles (fasteners) of iron or steel, nesoi. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.
This information was last updated on Aug 01, 2025.