National Stock Number
4820-01-373-5504
National Stock Number (NSN) 4820-01-373-5504, or NIIN 013735504, (valve,check) was assigned April 7, 1993 in the Federal Logistics Information System (FLIS). NIIN 013735504 was cancelled on January 2, 1999, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820014566699. This NSN replaces 1 stock number, 4820011467034.
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.]. 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 4820013735504 does not contain precious metals.
This information was last updated on Jun 01, 2025.