Ball Valve, Brass, Inline, 2-Piece, Pipe Size 1 in, Connection Type FNPT x MNPT/ NOMINAL PIPE SIZE ACCOMMODATED: 1.000 INCHES ALL ENDS MAXIMUM OPERATING TEMP: 400.0 DEG FAHRENHEIT SINGLE RESPONSE END ITEM IDENTIFICATION: 4520-01-564-3917; ENHANCED HEATING SYSTEM, RATION, TRAY VALVE OPERATION METHOD: MANUAL THREAD QUANTITY PER INCH: 18 ALL ENDS MAXIMUM OPERATING PRESSURE: 900.0 POUNDS PER SQUARE INCH SINGLE RESPONSE NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS PART NAME ASSIGNED BY CONTROLLING AGENCY: BALL VALVE MATERIAL: COPPER ALLOY BODY MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE PACKING MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE SEAT MEDIA FOR WHICH DESIGNED: LIQUID SINGLE RESPONSE STYLE DESIGNATOR: A1 STRAIGHT THRU THREAD SERIES DESIGNATOR: NPT ALL ENDS