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Old 08-28-2004, 05:05 PM
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AN Numbers and what do they mean?

Talking with my son and need some help with AN numbers used on different line fittings.
I know that it stands for Army Navy but don't know much more than that.
Please help me explain a little more about the history of AN and its sizing.
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Old 08-29-2004, 02:33 AM
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It pretty much corresponds to 16ths of an inch. There's a chart here:

http://competitionplus.com/06_17_2004/plumbing_pt1.html
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Old 08-29-2004, 07:30 PM
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Thank you. That is what I needed. I emailed it to my son.
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Old 09-03-2004, 03:23 PM
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Thanks for the link
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