4810-00-302-9987 (12013)
NSN 4810-00-302-9987 (NIIN 00-302-9987) is a valve seat in Federal Supply Class 4810, Valves, Powered — a replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. Manufacturer part number 12013 (Parker-Hannifin Corporation, CAGE 82106).
Key specs: 55 to 59 rockwell c body hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $37.96 gov standard price; export Schedule B 8481.90.9090.