Can anyone define this thread?

[NWR63]

2.2500-16 ACME - JB LE.500 PER SPEC PWA 363. I have this info for a female thread. I do not have a male part or gauge. I can make a male gauge if I can define the thread. Thanks for your info.

 

[Erich]

From a little google fu it looks like PWA 363 is a Pratt and Whitney specification.

If you are making a part for them, they should be providing you with all the specs called out on the drawing.

 

[johnoder]

Good luck with that. Probably need an IN with these folks - like being an actual customer or one of their service contractors

"Pratt & Whitney Aircraft" - Google Search

 

[Hightemp]

My guess is that the spec in question is a list of special requirements like processing steps, non-standard surface quality metrics, and various things not called out on regular threading specifications. Doubt it has much to do with specific geometry for the thread in question, but I could be way off. Yes, if you are making the part and need the spec, just ask - these kinds of things are regularly transferred to vendors.