National Stock Number
4921-01-342-1878
National Stock Number (NSN) 4921-01-342-1878, or NIIN 013421878, (test set subassembly,torpedo com) was assigned July 16, 1991 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 17, 1991, this NSN's acquisition method was noted as: Suitable for competitive acquisition for the first time. (Potential sources shall include dealers/distributors.) This part requires special test and/or inspection facilities to determine and maintain ultraprecision quality for its function or system integrity. Substantiation and inspection of the precision or quality cannot be accomplished without such specialized test or inspection facilities. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 42645. 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 4921013421878 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 Jun 01, 2025.