systems. The BSP thread is offered in a straight (parallel) form known as BSPP and a tapered form known as BSPT. These threads feature a 55° flank angle. Fittings in this section with male BSPP threads use a primary sealing method of an O-ring and retaining ring, as shown in Fig. G5. Fig. G5 — O-Ring with Retaining Ring

NPTF, BSPT and BSPP measure 1/4" larger than their actual size. For example, a 1/4" NPTF, BSPT or BSPP will actually measure 1/2" on the O. D. of the threads. JIC, SAE O-ring & Flat Face threads measure as listed below. The first number listed is the size of thread, the second number is the threads per inch. Adapter Sizing Chart Thread

British, BSPP, British standard pipe parallel, adapter, fitting, Whitworth thread, port, ISO 1179-1, ISO 1179-2, ISO 1179-3

Size Nominal Size (in) Actual Major Thread Diameter in inches 2 1/8 0.383 4 1/4 0.518 6 3/8 0.656 8 1/2 0.825

BSP threads have a 55° included angle and have rounded peaks and valleys (this is a Whitworth thread form). Here are the actual thread dimension data for BSPP and BSPT threads. The major diameter is a bit larger smaller than the actual OD of the pipe, and the minor diameter should be very close to what you would measure inside the

To find the thread size: 1) Measure the O.D (Outer diameter) of the BSP thread. 2) Take the O.D measurement in inches and subtract 1/4 (.25″). For example, a BSP parallel male thread measures out to O.D 1″. Subtracting 1/4 gives a thread size of 3/4 also known as "dash" 12.

BSP Thread Size Outside Diameter mm / inch TPI 1/16 Inch BSP 7.7 mm / 0.304" 28 1/8 Inch BSP 9.7 mm / 0.383" 28 1/4 Inch BSP 13.16 mm / 0.518" 19

BSP: Represents British standard thread, also known as Wyeth profile angle 55 °. BSPT stands for British standard taper pipe thread profile according to AS 1722.1, BS 21, ISO 7. BSPP: Represents British standard straight pipe thread profile according to AS 1722.2, ISO 228. BSPT external thread and BSPT non-adjustable internal thread seal.

Likewise, pipe thread can be parallel (e.g., BSPP). For pipe thread, determine the size by comparing it with a nominal size profile, as shown in Figure 1 (a 

1/16" BSPP 28 0.907 0.581 7.723 7.142 6.561 0 0.107 ‑0.107 ‑0.214 0.282 1/8" BSPP 28 0.907 0.581 9.728 9.147 8.566 0 0.107 ‑0.107 ‑0.214 0.282 1/4" BSPP 19 1.337 0.856 13.157 12.301 11.445 0 0.125 ‑0.125 ‑0.25 0.445 3/8" BSPP 19 1.337 0.856 16.662 15.806 14.95 0 0.125 ‑0.125 ‑0.25 0.445

16 rows · NOTE: It is a common mistake to identify a BSPT (tapered) as an NPT. Remember

Metric Thread -- Extended Thread Size Range (online only) MARYLAND METRICS -- THREAD DATA CHART: Metric Thread -- Fine Pitch Nominal Size ISO MF Thread Form Type Major Diameter mm d=D Pitch mm p Root Radius mm r Pitch Diameter mm d2=D2 Minor Diameter Male Thd. d3 Minor Diameter Thd. D1 Thread Height Male Thd. h3 Thread Height Thd

These threads come in two versions: parallel (BSPP), and tapered (BSPT). The thread 1) Measure the O.D (outer diameter) of the BSP thread.

British Standard Pipe (BSP) is a set of technical standards for screw threads that has been adopted internationally for interconnecting and sealing pipes and fittings by mating an external

Taps wth BSPP threads have a bottoming chamfer that cut into the workpiece with just 1-2 chamfered threads. Pieces: Chamfer Type: Thread Type: Pipe Size. No. of Flutes: Container Type : Each: Uncoated Carbon Steel. 6: Bottoming: BSPP, Metric: 1/8 1/4 3/8 1/2 3/4 1. 4, 5: Fabric Pouch: 00000000: 0000000: Home | Locations | Returns | Careers

BSPP (G) - British Standard Pipe Parallel and BSPT (R/Rp) – British Standard Tapered Pipe for pipes and tapered threads - G/R/Rp. The Whitworth thread 

G is the international standard shorthand for BSPP - BSP Parallel threads. R is the standard for BSPT - BSP Tapered. Parallel (G) threads are used where the 

There are two types of BSP thread styles: • BSP parallel threads. • BSP tapered threads. British parallel threads are often referred to as "G" threads, while British tapered threads are referred to as "R" threads. Each is measured in nominal sizes, and the threads are measured in threads per inch.

Parallel threads: also called straight threads. These threads have a constant diameter, 

British Standard Pipe Taper thread (R) Taper threads, British Standard Pipe Taper thread (BSPT), whose diameter increases or decreases along the length of the thread; denoted by the letter R. The taper is 1:16, meaning that for each 16 units of measurement increase in the distance from the end, the diameter increases by 1 unit of measurement.

BSPF Threads ( British Standard Pipe Parrallel Fine ) G 1/16" - G 1" G 1 1/8" - G 3" G 3 1/4" - -G 6" Size Thread Designation Major Dia External Thread Internal Thread Tap Drill; Size pitch Class Major Dia Pitch Dia Minor Dia Class Minor Dia BSW BSF BSPP BSPF BSPT NPT . Unified Threads 6UN 8UN 12UN 16UN 20UN 28UN 32UN UNC 8UNJ 12UNJ 16UNJ

National Pipe Thread (NPT) is a family of technical standards for threads that has been adopted internationally for interconnecting hoses and fittings by mating an external (male) thread with an internal ( ) thread. National Pipe Threads are similar in function to BSP threads, but are not generally interchangeable.

What are BSP thread sizes? ; 3/8", 6/10 inch, 15mm ; 1/2", 15 BSP, 3/4 inch, 19mm.

BSPP refers to parallel or straight threads. Meanwhile, BSPT refers to tapered threads. Sometimes BSPP threads are referred to as G threads and BSPT threads as R threads. Are you confused yet? Note: JIS tapered pipe thread (PT thread) is interchangeable with BSPT thread. *O.D. = Outside Diameter I.D. = Inside Diameter Go to top

If the diameter stays the same from the first to last thread then the thread is classified as a parallel thread (BSPP). Once it is known whether the thread is 

British Pipe Thread ( Whitworth Form) -- Parallel (BSPP/BSPF). Thread Designation, Nominal Size, Thread Form Type, Major Diameter