2805-00-428-3543 (240010)
NSN 2805-00-428-3543 (NIIN 00-428-3543) is an engine poppet valve in Federal Supply Class 2805, Gasoline Reciprocating Engines, Except Aircraft; And Components — a mushroom or tulip-shaped item having a circular head with a conical face and an extended stem used to regulate the flow of incoming fuel-air mixture or air. Manufacturer part number 240010 (Essex Industries, Inc., CAGE 55469); also referenced as A982 (Sterling Div Federal Mogul Corp).
Key specs: 41 minimum rockwell c tip metallic hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 8409.91.8000. Supersedes 2805-00-274-3416 (1963).