National Stock Number
4930-20-000-4003
National Stock Number (NSN) 4930-20-000-4003, or NIIN 200004003, (vent unit,relief) has an unknown assigned date. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 11 contracts issued for this part number, with 11 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE8EE25P0349, SPE8EE21P0054, SPE8ES19P1497, SPE8EE15V0648, SPE8EE15M0788. The total value of the awarded contracts has been US$ 335,119.68.
This NSN is unique to one weapons system.
There has been a small amount of 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) 35932. [A SPRING LOADED DEVICE EQUIPPED WITH AUTOMATIC PRESSURE AND VACUUM RELIEF VALVES TO RELIEVE DRUM STRUCTURE OF EXCESSIVE VAPOR PRESSURE BUILD-UPS AND PROVIDE FOR VACUUM RELIEF TO FACILITATE LIQUID FLOW. IT ALSO SERVES AS A FILLING UNIT WITH REMOVABLE CAP WITH CHAIN ATTACHMENT.].
This information was last updated on Oct 10, 2025.