Parts list question
Parts list question
(OP)
I'm having a bit of a discussion with another engineer, regarding which should be used in the parts list/balloons on a drawing. He uses numbers for pieces in a weldment, and letters for assembled items (anything that can be removed in a non-destructive way). This results in some drawings having two parts lists, if they contain both welded, and assembled items.
I use numbers for everything, and only one parts list. I reserve letters for datums.
Is there an ASME standard, that defines any of this?
Thanks,
Dave
I use numbers for everything, and only one parts list. I reserve letters for datums.
Is there an ASME standard, that defines any of this?
Thanks,
Dave
-Dave
Everything should be designed as simple as possible, but not simpler.





RE: Parts list question
"The ambassador and the general were briefing me on the - the vast majority of Iraqis want to live in a peaceful, free world. And we will find these people and we will bring them to justice." - George Bush, Washington DC, 27 October, 2003
RE: Parts list question
For us we wouldnt' have this problem as the weldment would probably be it's own drawing & other items would be assembled at the next level.
ASME Y14.3M-1996 only talks about number, see Figure 4 on page 6, first paragraph. It's called a find number.
So of the two methods I'd say you're probably more correct.
I thought 14.100 had some stuff on this but couldn't find it when I looked.
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?
RE: Parts list question
"The ambassador and the general were briefing me on the - the vast majority of Iraqis want to live in a peaceful, free world. And we will find these people and we will bring them to justice." - George Bush, Washington DC, 27 October, 2003
RE: Parts list question
You can search for more info here:
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Chris
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RE: Parts list question
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?
RE: Parts list question
I've also seen/used indented parts lists in the past too, but I believe inseperable assy
Thanks for the info.
-Dave
-Dave
Everything should be designed as simple as possible, but not simpler.
RE: Parts list question
FIND #| DESCRIPTION
1.1 | weldment member 1
1.2 | weldment member 2
1.3 | weldment member 3
2 | BOLT
3 | CASTER
4 | WASHER
David
RE: Parts list question
This also informed whoever was assembling / managing the project where they should be looking for the parts. Letters told them to go to shipping and recieving. Numbers told them to go to the machine shop. Most of the time, it was a case of walking around with the assembly print(s) and looking at/for all the various parts.
"#1-5 are still being black oxided, #6-8 will be completely machined by tomorrow morning, A thru D are in the... wait, where's the 3rd pnuematic cylinder?"
Considering that this was in companies that may have 12-20 projects in various stages... and the building was not very big (1/4 size of an average Walmart), it worked quite well. However, it was strictly an internal standard, not anything nationally / internationally recognized.
"A Designer knows that he has achieved Perfection not when there is nothing left to add, but when there is nothing left to take away" - Antoine de Saint-Exupry