National Stock Number
4320-01-691-4561
National Stock Number (NSN) 4320-01-691-4561, or NIIN 016914561, (cylinder sleeve and piston assem) was assigned October 9, 2020 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. None of the associated 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.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 60372. [A CYLINDER SLEEVE AND PISTON (1), (AS MODIFIED) WITH ONE OR MORE OF THE FOLLOWING: PISTON PIN, PISTON RING, GASKETS AND/OR SEALS, GROUPED AS A SINGLE UNIT AND INTENDED FOR ONE TIME REPLACEMENT IN THE REPAIR OF ENGINES, COMPRESSORS, PUMPS, AND THE LIKE.]. 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 4320016914561 does not contain precious metals.
This information was last updated on Aug 01, 2025.