National Stock Number
4220-01-692-0423
National Stock Number (NSN) 4220-01-692-0423, or NIIN 016920423, (cylinder,air,diving equipment) was assigned November 16, 2020 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) 37452. [A SINGLE COMPRESSED AIR TANK USED FOR UNDERWATER DIVERS; MAY HAVE ATTACHED VALVE. MAY INCLUDE BACKPACK AND DOES NOT INCLUDE BREATHING DEVICES.]. 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 4220016920423 does not contain precious metals.
This information was last updated on Aug 01, 2025.