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. 3Fittings and Tubing: P Series Pipe Fittings 02-9222SE 0320 Pipe Tee Catalog Number Connection Type Pressure Rating psi (bar)* Orifice inches (mm) Dimensions - inches (mm) Sizesand dimensions of pipes and tubes, and their fittings - inside and outside diameter, weight and more. Threads Thread data - metric, unified, ACME and others. Related Documents . ANSI B1.20.1 - NPT - American National Standard Taper Pipe Threads NPT and NPTF pipe threads - dimensions according ANSI/ASME B. British BSPTRc 1/8 : Brith Pipe (BSP) Thread Dimensions and Tolerances. All the relevant data for this tread in one spot. BSPT Rc 1/8 : Brith Pipe (BSP) Thread Dimensions and Tolerances. Dryseal Pipe Threads (NPTF) British Pipe Threads (BSP) ACME Trapezoidal Threads; Materials Menu Toggle. mm; Gauge Length (L g) 4.0 : 0.1575 : 21/2-8 NPT : Pipe and Fitting Thread Dimensions and Tolerances. All the relevant data for this tread in one spot. 2 1/2-8 NPT : Pipe and Fitting Thread Dimensions and Tolerances. (3.175 mm) Thread Truncation (f) 0.0041" (0.104 mm) 0.0078" (0.198 mm) Tapper angle Variation (ß) 1.641" ( ) 2.089" ( ) Thead V Half Angle (+/-) (α) NPTMale Threaded Pipe Inlet × Schrader Male Threaded Hose Outlet. Outlet. Inlet Pipe Size. Thread Size. Connection Lg. Some couplers meet SAE AS4395, an automotive industry standard for flared fitting dimensions. 70 mm: Thread Size. Connection Length: Maximum Pressure, psi: Temperature Range, °F: Overall Length, mm: Hex Size, mm: 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. Anglebetween sides of thread is 60 degrees. Thread taper, is 3⁄4 inch per foot. All units are in inches. 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 BSEN 10226-1. When designating threads to this standard three blocks are require: Block 1 (Pipe Thread): Block 2 (International standard ref = EN 10226: Block 3 R (size) For external taper thread: or Rp ( size) For internal parallel thread. Example external taper thread designation Pipe Thread EN10226 - R 3/4. BSPT& BSPP Threads Dimensions. Thread size refers to the nominal bore of the pipe. Subtract approx. 1/4″ (6mm) from thread diameter measurement for nominal pipe size. Pitch is Threads Per Inch (TPI). 3GbjSD.