National Stock Number
4730-00-278-0373
National Stock Number (NSN) 4730-00-278-0373, or NIIN 002780373, (bolt,fluid passage) 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 9 manufacturer part numbers associated with this NSN. 6 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 10 suppliers. Today, 8 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.
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 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) 18683. [A BOLTLIKE ITEM HAVING A CONCENTRIC HOLE ALONG THE LONGITUDINAL CENTERLINE WHICH MAY EXTEND A PART OR THE FULL LENGTH OF THE ITEM. IT HAS A HOLE(S) PERPENDICULAR TO THE AXIS, JOINING OR PASSING THROUGH THE CONCENTRIC HOLE ALONG THE LONGITUDINAL CENTERLINE. THE ITEM IS DESIGNED TO DISTRIBUTE FLUID, AIR, OR LUBRICANT THROUGH ITS BODY TO A MATING ITEM, SUCH AS A CONNECTOR, MULTIPLE, FLUID PRESSURE LINE, BEARING(S), BUSHING(S), OR THE LIKE. THE ITEM MUST BE CAPABLE OF ATTACHING TO A BLOCK FITTING AND/OR A TUBING LINE OR BE DESIGNED TO ACCOMMODATE A FITTING, LUBRICATION. EXCLUDES:BOLT, INTERNALLY RELIEVED BODY; BLEEDER VALVE, HYDRAULIC SYSTEM; AND BUSHING, MACHINE THREAD. SEE ALSO PIN, VEHICULAR LEAF SPRING SHACKLE.]. This item does not have a nuclear hardened feature but does have other critical feature(s) 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 4730002780373 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 Jul 01, 2025.