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What should appear on a drawing parts list? 1

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LONDONDERRY

Mechanical
Dec 20, 2005
124
Okay I have another debate with the same manufacturing engineer. Originally on an assenbly drawing I had the ITEM, QTY, PART NUMBER, and DESCRIPTION columns on a assembly drawing.
Our manufacturing engineer created so called "BOM's" for himself, that had the P/N, REV, PART NAME, UNIT, QTY columns. Though I disagree with his choice of columns, I left it alone instead of getting into a fiery debate with him. Six months later we needed to place an order for more parts, but because neither his BOM's or my drawing list the material and vendor, it took me twice as long to order parts, because I had to review all my file to see where I order standard components from. This time I revised the assembly drawing and added the MATERIAL and VENDOR COLUMNS, to streamline, if additional assemblies needed to be order.
Needless to say the manufacturing engineer, said VENDOR AND MATERIAL colums don't belong on a assembly drawing! I looked up the ANSI standards, and they list them as optional columns. However, he still wants to have them removed, for reasons unknown. SO if I remove them, and someone else is going to purchase parts, there going to have a hell of a time knowing where to buy them from. What's everyones opinion on this?

 
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I have worked with smaller companies that do exactly this Londonderry:
ITEM QTY PART NUMBER DESCRIPTION
1 1 4000272 MIRROR
2 1 4000269 MIRROR GASKET
3 1 4000332 MIRROR COVER
4 2 4000624 SPRING ANCHOR
5 1 94045A515 MCMASTER CROSSED RECESSED SHOULDER SCREW

Everyone recognizes a McMaster number so there is little confusion. The issue is that once in a great while McMaster will renumber their stock and suddenly 94045A515 is obsolete and cross-referenced to some rubber grommet, or worse they will suddenly have a number like above represent a package of 10,000 fasteners. Oops, I ordered qty 2...

In the larger company I am part of now, we assign our own P/N to every item and create a text drawing listing manufacturer and manufacturer part number for purchased stock items.
 
I also use ITEM, PART NUMBER, DESCRIPTION, QTY.
Description would also include materials like solder, epoxies, etc. QTY for these would be AR (As Required).

Chris
Systems Analyst, I.S.
SolidWorks 06 4.1/PDMWorks 06
AutoCAD 06
ctopher's home (updated 06-21-06)
 
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