National Stock Number
4820-00-554-8391
National Stock Number (NSN) 4820-00-554-8391, or NIIN 005548391, (cock,drain) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 005548391 was cancelled on February 2, 2000, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4820002723347. This NSN replaces 1 stock number, 4820002891169.
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) 16988. [AN ITEM WITH ONE MOUNTING END AND ONE FREE FLOWING END WITH A METAL TO METAL VALVE CLOSURE. IT IS DESIGNED TO DRAIN FLUIDS FROM RADIATORS, BOILERS, AND SIMILAR ITEMS.]. 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 4820005548391 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.