National Stock Number
4820-01-572-0763
National Stock Number (NSN) 4820-01-572-0763, or NIIN 015720763, (valve,liquid oxygen drain) was assigned February 26, 2009 in the Federal Logistics Information System (FLIS). NIIN 015720763 was cancelled on August 29, 2018, with a cancelled status of "Item is Cancelled - Inactive." 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 37931. [A VALVE DESIGNED TO DRAIN LIQUID OXYGEN FROM OXYGEN CONVERTERS. IT SHALL BE A POSITIVE-POSITION, TOGGLE-ACTUATING, BELLOWS-SEALED VALVE. IT IS SPECIFICALLY DESIGNED FOR OXYGEN SYSTEMS.]. 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 4820015720763 does not contain precious metals.
This information was last updated on Aug 01, 2025.