National Stock Number
4220-01-331-3627
National Stock Number (NSN) 4220-01-331-3627, or NIIN 013313627, (cylinder,air,diving equipment) was assigned December 18, 1990 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4220012281098.
There are 7 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 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 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 4220013313627 does not contain precious metals.
This information was last updated on May 01, 2025.