National Stock Number
5845-00-543-1873
National Stock Number (NSN) 5845-00-543-1873, or NIIN 005431873, (sonobuoy) 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 are 13 manufacturer part numbers associated with this NSN. 6 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 9 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
This NSN is assigned to Item Name Code (INC) 00508. [A WATER BUOYANT ITEM DESIGNED TO INTERCEPT UNDERWATER SOUND WAVES FOR THE SPECIFIC PURPOSE OF RETRANSMITTING THE RECEIVED SOUNDS IN SPACE VIA ELECTROMAGNETIC WAVES AND/OR INTERCEPT ELECTROMAGNETIC WAVES FOR THE SPECIFIC PURPOSE OF RETRANSMITTING THE INTELLIGENCE AS UNDERWATER SOUND WAVES. SEE ALSO BUOY, RADIO TRANSMITTING.]. 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 5845005431873 contains an unknown precious metal.
This NSN is associated to Schedule B 9014806000: other navigational instruments and appliances, nesoi. The Schedule B End Use is listed as marine engines, parts. NAICS classification category 334511: search, detection, navigation, guidance, aeronautical, and nautical system and instrument manufacturing.
This information was last updated on Aug 01, 2025.