National Stock Number
4220-01-200-4797
National Stock Number (NSN) 4220-01-200-4797, or NIIN 012004797, (chamber,recompression,diver''s) was assigned February 5, 1985 in the Federal Logistics Information System (FLIS). NIIN 012004797 was cancelled on April 2, 2018, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. 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, there are no suppliers 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 Jul 09, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 03323. [A SPECIALLY DESIGNED STEEL TANK CAPABLE OF WITHSTANDING HIGH INTERNAL PRESSURE AND EQUIPPED WITH THE NECESSARY GAGES, PIPES, AND VALVES TO PROPERLY CONTROL THE REQUIRED PRESSURES. IT IS ALSO FITTED WITH AIRTIGHT DOORS TO PROVIDE ACCESS INTO AND OUT OF THE CHAMBER, AND EQUIPPED WITH MANIFOLDS FOR ADMINISTERING OXYGEN AND HELIUM IN ADDITION TO AIR. LIGHTING AND COMMUNICATION EQUIPMENT ARE ALSO PROVIDED.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4220012004797 does not contain precious metals.
This information was last updated on Jul 01, 2025.