National Stock Number
4220-01-651-1746
National Stock Number (NSN) 4220-01-651-1746, or NIIN 016511746, (cylinder assembly,air,diving equ) was assigned January 7, 2016 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 manufacturer part numbers 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, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 08, 2016, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 20279. [AN ASSEMBLY CONSISTING OF AT LEAST TWO AIR CYLINDERS, METAL BAND ASSEMBLY(IES) TO SECURE THE CYLINDERS TO ONE ANOTHER, AND A MANIFOLD TO UNITE THEIR AIR SUPPLIES. MAY INCLUDE HARNESS ASSEMBLY AND PULL ROD. DOES NOT INCLUDE BREATHING DEVICES. FOR COMPLETE UNDERWATER BREATHING APPARATUS, SEE DIVING EQUIPMENT SET.]. The item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4220016511746 does not contain precious metals.
This information was last updated on Jul 01, 2025.