I'm looking for pipe fittings and nipples (black or galvanized) that have
National Pipe Straight threading. 1 1/2" - 3" would be great.
I'm building equatorial mounts for telescopes and I need the threads to
engage much further than the tapered threads will allow. The joints from
nipple to fitting ("T" and 45 degree elbow) act as bearings allowing the
telescope to turn at declination and right ascension. Am I correct in
assuming the nipple will turn all the way through the threads in the
Also, in the two different systems are the male and female threads both
tapered (NPT) or straight (NPS)?
Does anyone know of an internet retailer or supplier I could contact by
Any info would be appreciated. Thanks for your time.
Email or post, either is fine. Please remove "nospam" from address to