McMaster 4627K335 Medium Pressure Iron Pipe Fitting, Plug with External Square Drive, 1 NPT SRM12 0600 SL Includes Hose End Attachment Includes Hose End Attachment Standards Meets C1 Food Service Applications 247 SVHC) Compliant RoHS Compliance RoHS 3 (2015 863 EU) Compliant Schedule B Number 730719 Pressure Rating Medium Pressure Shape Cap and Plug Drive Style External Square Fitting Type Plug Fitting Connection NPT Male Pipe Size 1 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