National Stock Number (NSN) 4730-00-455-8740, or NIIN 004558740, (coupling,clamp,pipe) was assigned February 27, 1972 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 4730012156950, 4730004558743.
There are 5 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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 Feb 04, 2016. There have been 2 contracts issued for this part number, with 4 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: SPM7LX12DP006, SPM7LX12DP006, SPM7LX12DP006, SPM7LX12DP006, SPM7LX12DP006. The total value of the awarded contracts has been US$ 14,250.02.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 12, 2014, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 17503. [A DEVICE OF TWO OR MORE BOLTED SEGMENTS OF HOUSING AND A GASKET, DESIGNED TO CONNECT GROOVED OR PLAIN END PIPE OR TUBE (OR FITTINGS) AND WHICH CREATES A FLUID TIGHT JOINT.]. 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 4730004558740 does not contain precious metals.
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 Aug 01, 2025.