National Stock Number
4820-01-709-1928
National Stock Number (NSN) 4820-01-709-1928, or NIIN 017091928, (disk and seat set,valve) was assigned May 16, 2023 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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, there are no suppliers that are 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) 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 4820017091928 does not contain precious metals.
This NSN is associated to Schedule B 8481909090: parts of taps, cocks, valves and similar appliances, nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.
This information was last updated on Aug 01, 2025.