National Stock Number
4820-01-381-1955
National Stock Number (NSN) 4820-01-381-1955, or NIIN 013811955, (disk and seat set,valve) was assigned October 11, 1993 in the Federal Logistics Information System (FLIS). NIIN 013811955 was cancelled on January 23, 2002, 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 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) 37882. [A UNIT OF MATCHED ITEMS CONSISTING OF A CIRCULAR OR CYLINDRICAL ITEM, GROUND FOR PROVISION TO BE LAPPED WITH THE MATING SEATING SURFACE TO FUNCTION AS A UNIT TO FORM A DRIP TIGHT SEAL. MAY INCLUDE PLATE, INSERT, GUIDE, RINGS, AND THE LIKE. SEE ALSO DISK, VALVE AND SEAT, VALVE.]. This item does not have a nuclear hardened feature but does have other critical feature(s) 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 4820013811955 does not contain precious metals.
This information was last updated on Jun 01, 2024.