NPTThread (USA) NPTF Thread (USA) NPSC Thread (USA) NPSF Thread (USA) NPSL Thread (USA) NPSM Thread (USA) ACME Thread (USA) STUB ACME Thread (USA) mm: Tapping Drill Size mm: TPI: Pitch mm: 1/16" - 27 NPSF: 7.582: 6.304: 27: 0.940: 1/8" - 27 NPSF: 9.929: 8.651: 27: 0.940: 1/4" - 18 NPSF: 13.236: 11.232: 18: 1.411: 3/8" - 18 Couplersare female fittings with threads on both couplers.. Tees are couplers that join three sections of pipe or tubing. They can be a combination of male to female or reduce size. Elbows are couplers with a 90-degree turn.. Bushings are used to convert from one size to another. For example, your bushing could have a 3/8 male Elbows crosses, and tees larger than 3/8 in. and 10 mm. o er t Rf e Gaugeable Alloy 2507 Super Duplex Tube Fittings catalog, MS-01-174. NPT threads are based on requirements of ASME B1.20.1 and SAE AS71051. Burr-free Dimensions, in. (mm) Pressure Ratings, psig (bar) A E 316 SS, Carbon Steel Brass Alloy 2507, SAE45° Flare – SAE J512 Threads Dimensions. SAE male has 45° flare which seals against 45° seat in female. Male can also seal against 45° flared tubing with nut and sleeve. 7/16 – 20, 1/2 – 20, 3/4 – 16 & 7/8 – 14 are the same thread form as JIC 37° flare. Some fittings in these sizes have both JIC 37° & SAE 45° seats. 21/2" - 8 NPT: 72.699: 65.50: 8: 3.175: 3" - 8 NPT: 88.608: 81.50: 8: 3.175: 3 1/2" - 8 NPT: 101.316: 94.30: 8: 3.175: 4" - 8 NPT: 113.973: 107.00: 8: 3.175: 5" - 8 NPT: 141.300: 55degree Whitworth Thread Form. Whitworth Pipe Threads are used almost exclusively by countries which are otherwise on the metric system 3/8: 19: 0.656: 15.25 mm 14.75mm: 19/32" 37/64" 1/2: 14: 0.825: 19.00mm: 18.25mm 3/4" 23/32" 5/8: 14: 0.902: 21 mm 53/64" 3/4: 14: dimensions, and part numbers are subject to change without notice OverviewDrawing Profile Drawing 3-8 NPT - Tolerances 3-8 NPT : Pipe and Fitting Thread Dimensions and Tolerances. All the relevant data for this tread in one spot SizingThe NPT threads sizing chart includes data for external and internal pipe threads. The taper rate for all NPT threads is 1/16—3/4 in. per foot (62.5 mm per m)—which is Threethreads for 2-inch size and smaller; two threads for larger sizes. Note < 8 > Military Specification MIL-P-7105 gives the wrench makeup as three threads for 3 in. and smaller. The E3 dimensions are then as follows: Size 2 1/2 in., 2.69609 and size 3 in., 3.31719. Increase in diameter per thread is equal to 0.0625/n. u5kkZVr.

3 8 npt thread dimensions in mm