×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Part numbers for a redesigned parts

Part numbers for a redesigned parts

Part numbers for a redesigned parts

(OP)
hello

I have a dude about part numbers.

when a part suffer a redesign  that part needs a new part number or we  can use the actual part number??

Thanks a lot in advance

RE: Part numbers for a redesigned parts

Hmmmm...

Are you trying to ask if the part needs a new number if it's redesigned?

If so, probably, but it depends on a number of factors.

V

RE: Part numbers for a redesigned parts

Mendiriv,

   When a part is designed, assigned a part number, and manufactured, it is good practice to not change form, fit or function.  If someone walks into your warehouse looking for part 123-AB3321, whatever they find should function as that part.  

   This point has been brought up repeatedly on Eng-Tips.  Use the Google window, above, and search on "form fit function".

               JHG

RE: Part numbers for a redesigned parts

If the part is more than 50% redesigned, new part number. Has been a loose rule of thumb for a long time, but not everywhere.

Chris
SolidWorks 08, CATIA V5
ctopher's home (updated Aug 5, 2008)
ctopher's blog
SolidWorks Legion

RE: Part numbers for a redesigned parts

If the new part is backward-compatible with the old part in all places where the old part was used, then it can be a new revision of the same part number.  If not, it needs a new number.

RE: Part numbers for a redesigned parts

Ticks rule is slightly incomplete from my understanding of what ASME Y14.100 says about when to assign new part numbers.  It actually lists several cases when a new PN is required but the most common consideration is are the new and old versions completely interchangeable, both backward & forward compatible.

For example, could both versions be put in a bin on the shop floor and used at random with no problems, including any related to tracability.

'Changes to form fit or function' often get trotted out as the be all and end all of when it's a new rev but even that's incomplete.

KENAT,

Have you reminded yourself of FAQ731-376: Eng-Tips.com Forum Policies recently, or taken a look at posting policies: http://eng-tips.com/market.cfm?
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?

RE: Part numbers for a redesigned parts

How would you measure if a part is 50% redesigned or 45%?

Powerhound, GDTP T-0419
Production Manager
Inventor 2009
Mastercam X3
Smartcam 11.1
SSG, U.S. Army
Taji, Iraq OIF II

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources