National Stock Number
4220-01-713-6895
National Stock Number (NSN) 4220-01-713-6895, or NIIN 017136895, (helmet,deep-sea diver's,helium-o) was assigned August 28, 2023 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) 03243. [A HELMET, DEEP SEA DIVER'S, MODIFIED BY THE INSTALLATION OF FITTINGS FOR THE PURPOSE OF UTILIZING OXYGEN-HELIUM MIXTURES AND CONSERVING THESE MIXTURES BY ABSORBING THE CARBON DIOXIDE IN THE HELMET. A COPPER CANISTER, FILLED WITH A CARBON DIOXIDE CHEMICAL ABSORBENT IS FITTED TO THE HELMET THROUGH WHICH THE CARBON DIOXIDE LADEN ATMOSPHERE IS CIRCULATED.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4220017136895 does not contain precious metals.
This NSN is associated to Schedule B 9020008000: other breathing appliances and gas masks and parts and accessories, nesoi. The Schedule B End Use is listed as toys, games, and sporting goods. NAICS classification category 339113: surgical appliance and supplies manufacturing.
This information was last updated on Aug 01, 2025.