National Stock Number
4730-01-183-1578
National Stock Number (NSN) 4730-01-183-1578, or NIIN 011831578, (coupling half,quick disconnect) was assigned July 2, 1984 in the Federal Logistics Information System (FLIS). NIIN 011831578 was cancelled on June 2, 2011, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4730005418042. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN. 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) 18681. [A FLUID LINE FITTING HAVING A PIPE, TUBE OR HOSE CONNECTION OR A THROUGH HOLE TO ACCOMMODATE A BOLT, FLUID PASSAGE ON ONE END. THE OTHER END MUST HAVE AN INTERNAL OR EXTERNAL QUICK DISCONNECT FEATURE FOR CONNECTING A MATING PART TO FORM A QUICK DISCONNECT COUPLING ASSEMBLY. THE FITTING MAY INCORPORATE A SELF-SEALING FEATURE FOR THE PURPOSE OF AUTOMATICALLY SHUTTING OFF THE FLOW OF FLUID WHEN DISCONNECTED FROM ITS MATING HALF. FOR SELF-SEALING FITTINGS WITH AN EXTERNAL OR INTERNAL THREADED DISCONNECT END, SEE COUPLING HALF, SELF-SEALING. SEE ALSO, CONNECTOR, MULTIPLE, FLUID PRESSURE LINE.]. 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 4730011831578 does not contain precious metals.
This information was last updated on Jul 01, 2025.