McMaster 4627K334 Medium Pressure Iron Pipe Fitting, Plug with External Square Drive, 3 4 NPT G612334071 Handling Industry Container Type Cartridge Handling Industry Container Type Cartridge NSF Rating H1 Food Grade Lubricant Container Cartridge Lubricant Base Mineral Oil Primary Additive Polymer Min Steam Side B Gender Male Threading NPT Thread Configuration Threaded on Both Ends Maximum Steam Pressure 576 psi @ 300 Degrees F Side A Thread Type NPT Maximum Operating Temperature 400 Degrees F Metal Pipe Construction Seamless Side B Connection Type Threaded Resistance Properties Corrosion Resistant Schedule Schedule 40 Gravity Flow No Minimum Operating Temperature 20 Degrees F Side A Gender Male Maximum Operating Pressure 144 psi @ 450 Degrees F Pressure Level Low Pressure (100 299 psi) Fitting Compatibility Class 150 Side A Connection Type Threaded Side B Thread Type NPT Pressure Rating Medium Pressure Shape Cap and Plug Drive Style External Square Fitting Type Plug Fitting Connection NPT Male Pipe Size 3 4 Construction Solid Pressure Class 300 Body Shape Square Material Iron Maximum Pressure @ Temperature 400 psi @ 72° F Maximum Steam Pressure @ Temperature 300 psi @ 550° F Certification UL Listed Connects To Pipe Class 300 Material Steel For Pipe Material Steel For Pipe Schedule 80 For Use With Air 247 SVHC) Compliant RoHS Compliance RoHS 3 (2015 863 EU) Compliant Schedule B Number 730719