Determining Pipe Thread Sizes (NPT)

NPT Thread Chart

National Pipe Thread, NPT Thread Chart

Hose Thread Data

American Standard External Taper Pipe Threads

Thread ID Made Easy

NPT Thread Chart

Pipe Sizes, Pipe Thread Dimensions

BSP vs. NPT Fittings: Which Seal Do You Need?

How to measure the thread size of air line couplings and adaptors

Nigo Industrial Co. Brass Pipe Fitting, Hex Bushing Reducer

Pipe Fittings Specifications

ISO 228 Pipe Threads Where Pressure-Tight Joints Are Not, 50% OFF