National Stock Number
4220-01-677-9373
National Stock Number (NSN) 4220-01-677-9373, or NIIN 016779373, (inflator,diver's buoyancy compen) was assigned January 14, 2019 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 5 years.
This NSN is assigned to Item Name Code (INC) 53371. [AN ITEM WHICH IS COMPOSED OF A MOUTHPIECE EQUIPPED WITH A CHECK VALVE AND A PUSH BUTTON FOR DEFLATION AND ORAL INFLATION OF A COMPENSATOR, BUOYANCY, DIVER'S. THIS SYSTEM (MOUTHPIECE ASSEMBLY) WORKS IN CONJUNCTION WITH AN INHALATION-EXHALATION DIAPHRAGM WHICH ALLOWS THE DIVER'S BREATHING WITH THE AIR VOLUME CONTAINED IN THE COMPENSATOR. THE ITEM IS ALSO PROVIDED WITH ANOTHER INFLATING DEVICE USING THE AIR CONTAINED IN THE DIVER'S CYLINDER(S). EXCLUDES:REGULATOR (1), AIR PRESSURE, DEMAND AND VALVE (1), PNEUMATIC INFLATOR.]. 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 4220016779373 does not contain precious metals.
This information was last updated on Aug 01, 2025.