National Stock Number (NSN) 4730-00-277-5683, or NIIN 002775683, (elbow,pipe) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 9 stock numbers. Five of the National Stock Numbers that it replaces are: 4730004823541, 4730009216985, 4730002784821, 4730002784829, 4730002775548.
There are 22 manufacturer part numbers associated with this NSN. 8 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 18 suppliers. Today, 15 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 Apr 01, 2020. There have been 7 contracts issued for this part number, with 10 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: SPE7M320V3206, SPE7M319V4767, SPE7M418V0194, SPE7M417V3769, SPE7M315M4153. The total value of the awarded contracts has been US$ 9,615.98.
This NSN is very common among different weapons systems, belonging to 67 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 Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 03768. [A FITTING THAT FORMS AN ANGLE OF LESS THAN 180 DEGREES (3.141 RADIANS) FROM THE STRAIGHT FLOW. BOTH CONNECTING ENDS HAVE STANDARD PIPE THREADS OR ARE UNTHREADED AND DESIGNED TO ACCOMMODATE A PIPE. IT MAY HAVE SIDE OR HEEL INLET(S). SEE ALSO ELBOW, TUBE; AND CONNECTOR, MULTIPLE, FLUID PRESSURE LINE. EXCLUDES:BEND, SOIL PIPE.]. 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 4730002775683 does not contain precious metals.
This NSN is associated to Schedule B 7412200000: copper alloy tube or pipe fittings. 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.