Thread Torque Specs for 3/4-14 NPSM S.S. & Aluminum

  • Thread starter Thread starter wxrocks
  • Start date Start date
  • Tags Tags
    Thread Torque
Click For Summary

Discussion Overview

The discussion revolves around torque specifications for a 3/4-14 NPSM thread, specifically for stainless steel (S.S.) and aluminum applications. Participants are seeking recommendations and sharing resources related to this topic.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant, Eric, inquires about torque recommendations for a 3/4-14 NPSM thread for S.S. and aluminum.
  • Another participant questions whether the thread is actually a 3/4 NPT and expresses unfamiliarity with the NPSM designation, later clarifying that NPSM refers to straight pipe threads.
  • A third participant provides a link to a resource that may contain relevant information regarding torque specifications.
  • Eric mentions that he will be performing testing to determine the final torque recommendation and is looking for a starting point for his tests.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on specific torque values, and multiple viewpoints regarding the thread type and specifications are present.

Contextual Notes

There is a lack of established torque values for the specified thread type, and the discussion includes varying levels of familiarity with the NPSM designation.

Who May Find This Useful

Individuals involved in mechanical engineering, plumbing, or related fields who are interested in torque specifications for specific thread types may find this discussion relevant.

wxrocks
Messages
130
Reaction score
0
Hi --

Does anyone have torque recommendations for a 3/4-14 NPSM thread for S.S. and Aluminum? Thanks! Eric
 
Engineering news on Phys.org
Is that a 3/4 NPT? I can't say that I am familiar with the NPSM call out. Perhaps Q has seen it before. I'll do some looking around.

EDIT: I just found what you're referring to. Straight pipe threads, not tapered. God bless Machinery's Handbook.
 
Last edited:
Thanks for the help. This is a new thread for a project at work -- and I am going to be performing the testing to determine our final torque recommendation. I just wanted a starting point to have a figure to keep in mind while testing.
 

Similar threads

  • · Replies 18 ·
Replies
18
Views
3K
  • · Replies 18 ·
Replies
18
Views
3K
  • · Replies 18 ·
Replies
18
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
Replies
1
Views
1K
Replies
1
Views
2K
Replies
4
Views
2K
Replies
6
Views
985
Replies
6
Views
5K
  • · Replies 6 ·
Replies
6
Views
8K