National Stock Number
4730-00-277-7957
National Stock Number (NSN) 4730-00-277-7957, or NIIN 002777957, (cross,tube to boss) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 7 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 12 suppliers. Today, 10 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is 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 Jan 28, 2014. 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: SPE7M314M1850, SPM7M109VT177, SPM7M109VT177. The total value of the awarded contracts has been US$ 3,432.31.
This NSN is very common among different weapons systems, belonging to 27 different platforms.
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 Apr 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) 33773. [A FITTING HAVING FOUR BRANCHES IN THE SAME PLANE WHOSE AXES FORM RIGHT ANGLES. ONE OR MORE OF THE CONNECTIONS HAVE MACHINE THREADS (STRAIGHT THREADS OTHER THAN PIPE OR HOSE SERIES) DESIGNED TO ACCOMMODATE A TUBE OR ARE UNTHREADED AND DESIGNED TO ACCOMMODATE A TUBE. THE REMAINING CONNECTIONS ARE BOSS CONNECTIONS. THE BOSS CONNECTIONS HAVE INTERNAL OR EXTERNAL MACHINE THREADS AND ARE DESIGNED TO FACILITATE A GASKET, PREFORMED PACKING, WASHER, AND THE LIKE TO FORM A SEAL AT THE BOSS. IT MAY HAVE SIDE INLET(S).]. 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 4730002777957 does not contain precious metals.
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 Apr 01, 2025.