I'm looking for specifications for internal MJ threads. Googling just gets me specs for sale, like to find some for free :-)
MJ threads
Aug 11, 2006
4 Replies
Hey ff,
Some specifications are given in Machinery's Handbook. Shoot me an e-mail I have some PDF documentation that may help.
Hope this helps.
--Adam Joseph Cook, Mechanical Engineer
Fred, Not sure if this software will help, but it's free for awhile:
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Military specs can be downloaded at
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UNJ threads are MIL-S-8879 but I don't know about MJ. You might have luck searching the database.
Thanks to everyone replying. I borrowed a Machinery's Handbook newer than my 30 year old edition and it did have a lot of info on MJ threads. Not much in tabular form, mostly diagrams and explanation, however I was able to calculate the specs I needed. Have a great weekend.
Fred
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