Question: are bsp and bspt compatibility?
Answer: Thread I.D. The BSPT (tapered) male will mate with a BSPT (tapered) female, or a BSPP (parallel) female. ... The BSPT connector is similar to, but not interchangeable with, the NPTF connector. The thread pitch is different in most cases, the thread angle is 55° instead of the 60° angle found on NPTF threads.