Home Pipe Threads 3/4" NPT

3/4" NPT Thread Specifications

Complete dimensions for 3/4" NPT pipe thread. TPI: 14, Pitch: 0.07143" (1.814 mm).

Thread Dimensions

Designation3/4" NPT
Nominal Pipe Size3/4"
TPI14
Pitch0.07143" (1.814 mm)
Outside Diameter1.05" (26.67 mm)
Pitch Diameter1.0036" (25.49 mm)
Minor Diameter0.9624" (24.44 mm)
Taper Angle1.7899° (1:16 taper ratio)
Thread Depth0.04949" (1.257 mm)

Tap Drill Size

Tap drill: 0.9624" (24.44 mm)

Common Applications