National Stock Number (NSN) 4730-00-028-3911, or NIIN 000283911, (nipple,hose) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4330009772374.
There are 25 manufacturer part numbers associated with this NSN. 23 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, there are no suppliers 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, with the most recent procurement date of Aug 17, 2017. There have been 36 contracts issued for this part number, with 57 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE7M317P4491, SPE7M315V0365, SPM7M313V0483, SPM7M313V0483, SPM7M312V2556. The total value of the awarded contracts has been US$ 32,158.48.
This NSN is fairly common among different weapons systems, belonging to 12 different platforms.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 02, 2006, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 03781. [A STRAIGHT FITTING USED TO JOIN TWO INTERNALLY THREADED HOSE CONNECTIONS. IT HAS HOSE CONNECTIONS AT BOTH ENDS EXTERNALLY THREADED WITH THE SAME SIZE STANDARD HOSE THREADS. THE CENTER SECTION IS LUGGED OR SUITABLY SHAPED TO ACCOMMODATE A WRENCH. IT MAY INCLUDE NUTS, SLEEVES, AND/OR GROMMETS.]. 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 4730000283911 contains an unknown precious metal.
This NSN is associated to Schedule B 7307992000: other fittings nesoi of iron or nonalloy steel. The Schedule B End Use is listed as iron and steel products, other. NAICS classification category 332919: other metal valve and pipe fitting manufacturing.
This information was last updated on Jul 01, 2025.