.7500-28 UNJEF-2B ???
.7500-28 UNJEF-2B ???
(OP)
I've been asked by a colleague to furnish specifications for a .7500-28 UNJEF-2B thread, which he says is called out on a customer-furnished drawing.
All the internal J-series threads I've ever read about have been class 3B. Furthermore, I don't see .7500-28 UNJEF listed in any reference.
Does anybody have any information which could help me determine if this thread actually exists?
All the internal J-series threads I've ever read about have been class 3B. Furthermore, I don't see .7500-28 UNJEF listed in any reference.
Does anybody have any information which could help me determine if this thread actually exists?
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RE: .7500-28 UNJEF-2B ???
RE: .7500-28 UNJEF-2B ???
RE: .7500-28 UNJEF-2B ???
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RE: .7500-28 UNJEF-2B ???
However, while it is true that all MIL-S-8879 (now AS8879) UNJ threads are Class 3, not all "UNJ" threads are Class 3. ASME B1.15 (http://members.asme.org/catalog/ItemView.cfm?ItemN...) tabulates dimensions for Class 2 UNJ threads.
RE: .7500-28 UNJEF-2B ???
I wish I could read the standard you reference, but fifty bucks for a 72 page document is more than I can justify.
In twenty five years of working with blueprints from many different companies, both in and out of aerospace, I've never run across a class 2 UNJ thread.
You can learn something new every day.
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