National Stock Number
4320-00-040-2638
National Stock Number (NSN) 4320-00-040-2638, or NIIN 000402638, (connector,fluid,pump) was assigned January 1, 1963 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. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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) 61763. [AN ITEM WITH A THREADED OR UNTHREADED TUBE, PIPE, OR HOSE CONNECTION ON ONE END AND A MOUNTING FACILITY, SUCH AS A FLANGE ON THE OPPOSITE END. IT IS DESIGNED FOR A PUMP TO PROVIDE AN INLET OR OUTLET CONNECTION TO A SYSTEM FLUID LINE. THE ITEM MAY BE STRAIGHT OR ANGULAR. EXCLUDES HEAD, HYDRAULIC MOTOR-PUMP AND VALVE HEAD, HYDRAULIC MOTOR-PUMP.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4320000402638 does not contain precious metals.
This NSN is associated to Schedule B 8413919520: parts, nesoi, of pumps for liquids. The Schedule B End Use is listed as industrial engines. NAICS classification category 333911: pump and pumping equipment manufacturing.
This information was last updated on Aug 01, 2025.