NPT stands for?

NPT stands for?

• A. National pipe thread
• B. National Pressure Thread
• C. National Pipe Thickness
• D. National Piping Thread

Answer: (A)

NPT stands for National Pipe Thread, the North American standard for tapered pipe threads used to seal pipe joints. The taper creates a wedging action as the connection tightens, often using thread sealant or PTFE tape to achieve a watertight or gas-tight seal. This standard, ANSI/ASME B1.20.1, defines the thread form, taper, and how parts made to the standard fit together. The other options aren’t used names for this standard—they don’t describe the actual pipe thread specification.

NPT stands for National Pipe Thread, the North American standard for tapered pipe threads used to seal pipe joints. The taper creates a wedging action as the connection tightens, often using thread sealant or PTFE tape to achieve a watertight or gas-tight seal. This standard, ANSI/ASME B1.20.1, defines the thread form, taper, and how parts made to the standard fit together. The other options aren’t used names for this standard—they don’t describe the actual pipe thread specification.