National Stock Number
4730-00-555-3749
National Stock Number (NSN) 4730-00-555-3749, or NIIN 005553749, (elbow,swivel flange to hose) 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 are 5 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. 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, with the most recent procurement date of Sep 22, 2015. There have been 2 contracts issued for this part number, with 2 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE7M315M4119, SPE7M315M4119, SPE7M315M2566, SPE7M315M2566. The total value of the awarded contracts has been US$ 44,267.66.
This NSN is somewhat common among different platforms, belonging to 6 different weapons systems.
There has been very little 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 Jul 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 18324. [A FITTING THAT FORMS AN ANGLE OF LESS THAN 180 DEGREES (3.141 RADIANS) FROM THE STRAIGHT FLOW. ONE END CONNECTION MUST HAVE A SWIVEL FLANGE DESIGNED TO PERMIT AXIAL ROTATION OF THE FITTING, USUALLY FOR THE EASE OF INSTALLATION, PRIOR TO SECURING IT TO A FLANGE OR MOUNTING PAD. THE OTHER END CONNECTION IS DESIGNED TO GRIP THE HOSE DIRECTLY, EITHER EXTERNALLY, INTERNALLY, OR BOTH. IT INCLUDES ITEMS DESIGNED TO ACCOMMODATE A SWIVEL FLANGE.]. 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 4730005553749 contains an unknown precious metal.
This NSN is associated to Schedule B 7609000000: aluminum tube or pipe fittings (couplings,elbows sleeves). The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332919: other metal valve and pipe fitting manufacturing.
This information was last updated on Aug 01, 2025.