National Stock Number
4730-00-037-5277
National Stock Number (NSN) 4730-00-037-5277, or NIIN 000375277, (elbow,hose to boss) 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 is only one manufacturer part number associated with this NSN. One 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, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 22677. [A FITTING THAT FORMS AN ANGLE OF LESS THAN 180 DEGREES (3.141 RADIANS) FROM THE STRAIGHT FLOW. ONE CONNECTING END MUST HAVE EITHER STANDARD HOSE THREADS, AN INCOMPLETE PART OF A THREADED END CONNECTION THAT GRIPS THE HOSE DIRECTLY, OR IS UNTHREADED AND DESIGNED TO ACCOMMODATE A HOSE. THE OTHER CONNECTING END HAS EXTERNAL OR INTERNAL MACHINE THREADS (STRAIGHT THREADS OTHER THAN PIPE OR HOSE SERIES), AND IS DESIGNED TO FACILITATE A GASKET, PREFORMED PACKING, WASHER, OR THE LIKE, TO FORM A SEAL AT THE BOSS. IT IS DESIGNED TO JOIN A HOSE OR HOSE FITTING TO A BOSS OR BOSS FITTING ON ITEMS SUCH AS TANKS, HOUSINGS, VALVE FITTINGS, AND THE LIKE. IT MAY HAVE SIDE AND/OR HEEL INLET(S). SEE ALSO ELBOW, HOSE; AND ELBOW, TUBE TO HOSE. EXCLUDES:ELBOW, PIPE TO HOSE AND ITEMS HAVING FLANGE ENDS.]. 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 4730000375277 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.