National Stock Number
4820-00-257-4999
National Stock Number (NSN) 4820-00-257-4999, or NIIN 002574999, (valve,plug) was assigned June 29, 1973 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 7 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for 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) 05490. [A VALVE DESIGNED TO CONTROL THE FLOW OF A FLUID BY THE ROTATION OF A PORTED PLUG OR PLUG SECTOR WITHIN A SUITABLE PORTED SEAT. THE PLUG REQUIRES LUBRICATION FOR EASE OF OPERATION OR CONTAINS A BONDED COMPOSITION SEAL(S). SEE ALSO VALVE, SEATLESS AND COCK, PLUG.]. 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 4820002574999 contains an unknown precious metal.
This NSN is associated to Schedule B 8481801010: hand operated taps, cocks, valves and similar appliances of copper, having a pressure rating under 850 kpa (123 lbs pressure). The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332913: plumbing fixture fitting and trim manufacturing.
This information was last updated on Jul 01, 2025.