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Thread specifications

Thread specifications

Thread specifications

(OP)
I need to know the dimensions for a 9/16 - 18 SAE Port Thread. Where can I find this info or, does anyone have the dimensions, such as Major, Minor and Pitch diameters, any lead taper, etc? Thanks in advance for the help!

RE: Thread specifications

Is this a straight thread tube fitting boss? If so the thread is 9/16-18UNF-3B.

RE: Thread specifications

Did you check in the Machinery's Handbook?

Thanks!
Pete
P. J. (Pete) Chandler, PE
Principal Engineer
Mechanical, Piping, Thermal, Hydraulics
Processes Unlimited International, Inc.
Bakersfield, California USA
pjchandl@prou.com

RE: Thread specifications

Actually, the thread is a 9/16-18UNF-2B.  Thread Pitch diameter is between .5264 & .5323; minor thread diameter is between .502 & .515

RE: Thread specifications

Depends on the spec., MS33649 calls for 3A/3B.

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