4810-00-413-3164 (20131)
NSN 4810-00-413-3164 (NIIN 00-413-3164) 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 20131 (Pneudraulics, Inc., CAGE 06177).
Key specs: 58 to 62 rockwell c overall hardness; full characteristics table below. NIIN assigned May 1974; DEMIL A (none required); unit of issue EA (each), $56.29 gov standard price; export Schedule B 8481.90.9090.