National Stock Number
4820-00-185-6890
National Stock Number (NSN) 4820-00-185-6890, or NIIN 001856890, (valve,cross) was assigned February 16, 1971 in the Federal Logistics Information System (FLIS). NIIN 001856890 was cancelled on December 15, 2017, 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 one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 05484. [A VALVE WITH TWO CONNECTIONS ON THE RUN AND A THIRD AND SOMETIMES FOURTH CONNECTION AT 90 DEGREE (1.5708 RADIANS) ANGLE(S) TO THE RUN. THE FLOW IS CONTROLLED BY THE ACTION OF A STEM WHICH LIFTS A DISK PERPENDICULARLY OFF OF THE CENTER AXIS OF ITS SEAT.]. 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 4820001856890 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.