National Stock Number
4921-01-520-4313
National Stock Number (NSN) 4921-01-520-4313, or NIIN 015204313, (chock,torpedo) was assigned May 12, 2004 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Feb 07, 2020. 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 2 different suppliers. The last contract numbers awarded were: SPE7MC20P1851, SPE7M118V8288, SPE7M416V0774, SPE7MC16V1295, SPE7MC16V0720. The total value of the awarded contracts has been US$ 102,088.06.
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 Oct 16, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 03591. [A RECTANGULAR SHAPED ITEM OF WOOD OR OTHER SUITABLE MATERIAL, GENERALLY WITH ONE OR MORE GROOVES AND/OR INSERTS ON ONE FACE TO ENSURE A SNUG FIT, USED FOR CRADLING TORPEDOES ON SHIPS, SHORE BASES AND THE LIKE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4921015204313 does not contain precious metals.
This NSN is associated to Schedule B 9306900080: parts for bombs, grenades, torpedos, mines, and similar munitions of war. The Schedule B End Use is listed as tanks, artillery, missiles, rockets, guns and ammunition. NAICS classification category 332992: small arms ammunition manufacturing.
This information was last updated on Jul 01, 2025.