National Stock Number
1680-01-550-5522
National Stock Number (NSN) 1680-01-550-5522, or NIIN 015505522, (piston,reaction cylinder) was assigned April 23, 2007 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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier 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 assigned to Item Name Code (INC) 38243. [A CYLINDRICAL PIECE WHICH MOVES OR RECIPROCATES UNDER FORCE IN A CYLINDER ASSEMBLY, REACTION. IT IS USUALLY A SINGLE ITEM, BUT MAY HAVE FACILITIES FOR ATTACHMENT TO AN OPERATING ROD, EXCLUDES THREADED END TYPES WITH AN INTEGRAL OPERATING ROD FOR, WHICH SEE ROD ASSEMBLY, OPERATING, GUN.]. 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 1680015505522 does not contain precious metals.
This NSN is associated to Schedule B 8803300060: other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof). The Schedule B End Use is listed as parts for military-type goods. NAICS classification category 336413: other aircraft parts and auxiliary equipment manufacturing.
This information was last updated on Jul 01, 2025.