National Stock Number
2805-00-591-1977
National Stock Number (NSN) 2805-00-591-1977, or NIIN 005911977, (cylinder sleeve) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 2805006243639.
There are 3 manufacturer part numbers associated with this NSN. 2 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) 16756. [A TUBULAR METAL ITEM DESIGNED PRIMARILY AS A REPLACEABLE WEAR SURFACE WITHIN THE CYLINDER BORE OF A PISTON TYPE INTERNAL COMBUSTION ENGINE, COMPRESSOR, OR RECIPROCATING PUMP.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2805005911977 contains an unknown precious metal.
This NSN is associated to Schedule B 8409100080: parts for spark-ignition or compression-ignition internal combustion piston engines for use in aircraft except civil. The Schedule B End Use is listed as engines and turbines for military aircraft. NAICS classification category 336412: aircraft engine and engine parts manufacturing.
This information was last updated on Jul 01, 2025.