National Stock Number
4820-00-006-3984
National Stock Number (NSN) 4820-00-006-3984, or NIIN 000063984, (valve,check) has an unknown assigned date. NIIN 000063984 was cancelled on May 2, 1993, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820011519799. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 05487. [A VALVE PERMITTING FLOW IN ONE DIRECTION ONLY. IT DOES NOT HAVE A STEM, EXCEPT WHEN EQUIPPED WITH A LEVER AND WEIGHT AND HAS NO PRESSURE ADJUSTMENT. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820000063984 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.