Thread Types: Difference between revisions

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=Short List=
=Short List=
Summary - there is National Hose and National pipe as the main 2 types of threads. Each can be tapered or straight.
Summary - there is National Hose and National Pipe as the main 2 types of threads. National Pipe can be tapered or straight, while National Hose is not tapered.
*{{check}}National Hose (NH) = National Standard Thread (NST) = National Hose Thread (NHT). It is often referred to as “fire hose thread”.  - [https://www.google.com/search?sxsrf=ALeKk026QG9BbsZl0rNsBS9KmerMgczY_w%3A1602863734253&source=hp&ei=dsKJX6q8DJDYsAXHkpG4Cw&q=is+nst+thread+same+as+NH+thread&btnK=Google+Search&oq=how+to+configure+nvidia+geforce+gtx+1650+super+on+linux+mint&gs_lcp=CgZwc3ktYWIQAzIFCCEQoAEyBQghEKsCMgUIIRCrAjoOCAAQ6gIQtAIQmgEQ5QI6DgguELEDEMcBEKMCEJMCOggILhDHARCvAToLCC4QsQMQxwEQowI6CAgAELEDEIMBOggILhCxAxCDAToFCAAQsQM6AggAOgQIABAKOgYIABAWEB46CAghEBYQHRAeOgcIIRAKEKABUMsQWOmzAWD8tAFoBnAAeACAAeQGiAGhS5IBDTExLjQ3LjMuMi42LTGYAQCgAQGqAQdnd3Mtd2l6sAEG&sclient=psy-ab&ved=0ahUKEwiqz4DcvLnsAhUQLKwKHUdJBLcQ4dUDCAk&uact=5]
*{{check}}National Hose (NH) = National Standard Thread (NST) = National Hose Thread (NHT). It is often referred to as “fire hose thread”.  - [https://www.google.com/search?sxsrf=ALeKk026QG9BbsZl0rNsBS9KmerMgczY_w%3A1602863734253&source=hp&ei=dsKJX6q8DJDYsAXHkpG4Cw&q=is+nst+thread+same+as+NH+thread&btnK=Google+Search&oq=how+to+configure+nvidia+geforce+gtx+1650+super+on+linux+mint&gs_lcp=CgZwc3ktYWIQAzIFCCEQoAEyBQghEKsCMgUIIRCrAjoOCAAQ6gIQtAIQmgEQ5QI6DgguELEDEMcBEKMCEJMCOggILhDHARCvAToLCC4QsQMQxwEQowI6CAgAELEDEIMBOggILhCxAxCDAToFCAAQsQM6AggAOgQIABAKOgYIABAWEB46CAghEBYQHRAeOgcIIRAKEKABUMsQWOmzAWD8tAFoBnAAeACAAeQGiAGhS5IBDTExLjQ3LjMuMi42LTGYAQCgAQGqAQdnd3Mtd2l6sAEG&sclient=psy-ab&ved=0ahUKEwiqz4DcvLnsAhUQLKwKHUdJBLcQ4dUDCAk&uact=5]
*GHT - garden hose, used also in fire hose [https://rawhidefirehose.com/blog/guide-fire-hose-couplings-threading/#:~:text=NH%2FNST%20Threads,also%20referred%20to%20as%20NH.]. Same threads per inch as NPT, but not tapered.
*GHT - garden hose, used also in fire hose [https://rawhidefirehose.com/blog/guide-fire-hose-couplings-threading/#:~:text=NH%2FNST%20Threads,also%20referred%20to%20as%20NH.]. Same threads per inch as NPT, but not tapered.

Revision as of 16:41, 19 March 2024

Short List

Summary - there is National Hose and National Pipe as the main 2 types of threads. National Pipe can be tapered or straight, while National Hose is not tapered.

  • Check.pngNational Hose (NH) = National Standard Thread (NST) = National Hose Thread (NHT). It is often referred to as “fire hose thread”. - [1]
  • GHT - garden hose, used also in fire hose [2]. Same threads per inch as NPT, but not tapered.
  • NPSH - national pipe straight hose - same as NPS [3]. Compatible with NPT [4]. NPSH has the same threads per inch as NPT, but without taper. [5]. Verified here [6]. Check.png
  • NPS - National Pipe Straight, same as NPT, but straight. [7]. NPS is not used for high pressure, while NPT can be, such as hydraulics. Does this mean that NPS and GHT are the same?
  • NPSM - National Pipe - Straight Mechanical - closure attained by 30 degree compression fit with a swivel - [8]. Only NPT with chamfer will seal properly with NPSM - other NPT threads may not seal.
  • NPT - National Pipe - tapered
  • R, G - [9]
  • BSPP - British Pipe thread parallel
  • BSPT - British Pipe thread tapered
  • Bolt thread - fine and course
  • Metric bolt - fine and course
  • Metric pipe straight
  • Metric pipe parallel
  • UN - [10]
  • SAE - with o-rings

Long List

Probably hundreds exist all together.