National Stock Number
4220-01-727-5186
National Stock Number (NSN) 4220-01-727-5186, or NIIN 017275186, (helmet,deep-sea diver's) was assigned March 7, 2025 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) 03242. [A SPHERICAL METAL INCLOSURE FOR A DIVER'S HEAD, DESIGNED FOR USE WITH A DIVER'S DRESS. USUALLY FURNISHED WITH A BREASTPLATE OF LIKE MATERIAL. EXCLUDES:HELMET, DEEP-SEA DIVER'S, HELIUM-OXYGEN. SEE ALSO HELMET, SHALLOW WATER DIVER'S.]. 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 4220017275186 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 Jul 01, 2025.