3/8 = nominal pipe size 18 = number of threads per inch NPT = symbol for the thread series and form (i.e., National (American)Standard Pipe, Taper) Basic dimensions are given to four or five decimal places to eliminate errors when calculating gauge dimensions, they do not imply a greater degree of precision than is normally obtainable.

NPT Thread Chart for basic dimensions of general purpose NPT pipe threads (inch) according to ANSI/ASME B1.20.1 standard. Thd. Note: The dimensions of the NPT Thread are given to four or five decimal places.

National Standard Taper Pipe Threads Size NPT Chart - Includes both External and internal Pipe Thread Data. The taper rate for all NPT threads is 1⁄16 (3⁄4 inch per foot) measured by the change of diameter (of the pipe thread) over distance.

3/8-18 NPT : Pipe and Fitting Thread Dimensions and Tolerances. All the relevant data for this tread in one spot.

Choose from our selection of 3/8 NPT pipe fittings, including metal pipe and pipe fittings, plastic pipe and pipe fittings, and more. Same and Next Day Delivery.

NPT stands for National Pipe Tapered threads. The basic profile is a 60° truncated triangle similar to the Unified Inch threads (UNC/UNF). The main difference is that the thread profile is tapered at an angle of 1°47′ (0.75 in/ft or 62.5 mm/m) relative to the axis.

SUNGATOR 3/8'' NPT Brass Hose Barb Fittings, 3/8'' NPT Male Thread to 3/8'' Barbed Air Hose Fittings, 3/8'' Brass Air Line Repair Connectors for Compressor, Fuel, Oil (2-Pack)

2017年7月24日 · Hex nipple for connecting two threaded pipes or fittings and extending pipe length, hexagonal middle section for tightening with a wrench. Male NPT threads for connecting to female threaded pipes. Forged Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.

2021年5月24日 · One of the common standard threads is NPT, you may have heard 1/8 NPT thread and 1/2 NPT thread, what do they mean? Here we’ll explain what NPT stands for, the characteristics of NPT threads and the basics of NPT thread sizes, you can also check out the NPT thread size table.

National Pipe Thread Taper ( NPT ) is a U.S. standard for tapered threads used on threaded pipes and fittings . In contrast to straight threads that are found on a bolt, a taper thread will pull tight and therefore make a fluid-tight seal.