National Stock Number
6515-00-442-4821
National Stock Number (NSN) 6515-00-442-4821, or NIIN 004424821, (plug,ear) was assigned May 23, 1974 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 7 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 129 contracts issued for this part number, with 319 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: SPE2DS25P0508, SPE2DS24P1386, SPE2DS24P1386, SPE2DS23V074Z, SPE2DS19V9703. The total value of the awarded contracts has been US$ 64,153.86.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
This national stock number is in high demand. 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 May 12, 2017, 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) 13117. [A DEVICE TO PROTECT THE EAR AGAINST HARMFUL NOISE OR WATER.]. 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 6515004424821 does not contain precious metals.
This NSN is associated to Schedule B 9018908000: other instruments and appliances used in medical, surgical, dental or veterinary sciences, nesoi. The Schedule B End Use is listed as medicinal equipment. NAICS classification category 339112: surgical and medical instrument manufacturing.
This information was last updated on Jul 01, 2025.