McMaster 4550K194 Thick Wall Welded Steel Pipe Nipple, Threaded Both Ends, 3 4 NPT, 2 1 2" Long, Sch 80, Class 300 31DM74 68 Maximum Heat Rating 574 68 Maximum Heat Rating 574 Degrees F Closure Lace Up CSA Standards Met Not Applicable Manufacturer Suggested Sole Slip Rating (PRINT) Better Puncture Resistant Sole (PRINT) No Oil Resisting Sole (PRINT) Yes Maximum Heat Rating (PRINT) 574 Degrees F Insole Material Polyurethane Insulation Weight (PRINT) Not Applicable Shank Material (PRINT) Fiberglass Chemical Resisting Sole (PRINT) No Construction Cemented Metatarsal Guard System Not Applicable Toe Cap Material Alloy Heavy Duty Drives Number of Bands 1 Belt Series Super HC(R) Molded Notch Belts Resistance Properties Heat Resistant Pressure Rating High Pressure Wall Thickness Rating Thick Shape Straight Fitting Type Pipe Threading Threaded on Both Ends Fitting Connection NPT Male Pipe Size 3 4" Length 2 1 2" Construction Welded Pipe Schedule 80 Material Steel Class 300 this pipe has thick walls for good strength in high pressure applications