National Stock Number
4320-00-423-0173
National Stock Number (NSN) 4320-00-423-0173, or NIIN 004230173, (seal assembly,shaft,spring loade) 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 3 suppliers. Today, 3 suppliers are listed as Active suppliers 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 02, 2005, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 32556. [A COMBINATION OF ITEMS USED IN SEALING VARIOUS ROTARY SHAFT EQUIPMENT. IT MAY INCLUDE ITEMS SUCH AS BELLOWS, DISK, DRIVE RING, FLEXIBLE DIAPHRAGM, MATING RING, O-RING, RETAINER, SEAT, SLEEVE, WASHER, AND THE LIKE. EXCLUDES:SEAL,PLAIN ENCASED.]. 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 4320004230173 contains an unknown precious metal.
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 Jul 01, 2025.