ANSI Standard requiring changing part number vs revision 1

[Quality Improvement 1]

This would be a follow-up to thread from Nathan Gardner on May 25 2017; response provided by MadMango.

Would anyone know the specific ANSI Document/ Standard that requires a part number change (vs a revision change) due to 'if a part is not backward compatible, this would require a new part number, and not a revision change'. I am not sure what exact language of the standard, however, you will understand what I am looking for.

I am not sure if this is identified in an ASTM, ANSI, EIA649, ISO, SAE, etc. document.

Question is specifically for hardware.

Thank-you!

David

 

[Gr8blu]

Try ASME Y14.100. It does not specifically tell you what to do about backward compatibility, but reading between the lines the answer is:
compatible = new revision. incompatible = new drawing/part.

Converting energy to motion for more than half a century

 

[ewh]

While I can't point to any formally adopted specs, it has been my experience that most companies I have worked with have a rule that a new number is required if there is any change to Form, Fit, or Function. Of course, a part that is not backward compatible would require a new number under that system.

"Know the rules well, so you can break them effectively."
-Dalai Lama XIV

 

[looslib]

Someone explained interchangeability this way:
If you can throw all the part revisions of any part in a bin, pull one out and have it go into any revision of the assembly, the part is okay with a revision.

https://www.buyplm.com/plm-good-practice/plm-software-part-revision-form-fit-function.aspx

"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli