John Crist
Mechanical
thread301-348070
Here is a compilation summary for if anyone finds it handy (and accurate). Comments are appreciated.
Source Control Drawing
Typically used for items that are customized or custom designed by and fabricated by a supplier in a specialized segment of industry upon request of one customer. Includes items that require specific performance, testing, installation, interchangeability, or other specific characteristics.
Source Control Drawings recognize the difference between the buyer’s goals and the manufacturer’s goals and needs, by defining the content of the buyer’s drawing. The buyer’s drawing specifies that which the buyer and user see. The manufacturer’s drawings and procedures define how to meet the buyer’s procurement drawing.
As with other types of drawings, they may be tabulated for convenience and to reduce likelihood of errors due to unintended differences between the similar items.
Contents:
1. Drawing: A high level engineering drawing with the buyer’s P/N and revision level. It specifies features the buyer and user see or use. It generally does not include internal features unless needed by the manufacturer as noted below. It usually includes depictions, provided by the manufacturer, of the item.
2. Requirements: Size and shape constraints, interface, interchangeability, aesthetics, installation, environment, performance, life, characteristics required for critical applications, production constraints, and other parameters that are suspected to possibly affect performance or other requirements but cannot be fully anticipated or specified.
If the requirements are numerous, and are not associated with particular components on the drawing, they can be located on a supporting, specification document (e.g. Word file).
3. Qualification equipment, procedure, and criteria. It might also specify who performs or is responsible for it – e.g., the buyer, a regulatory agency, or third-party test house.
4. Acceptance criteria: This defines equipment, procedures and appropriate criteria and criticality that are not obvious to a manufacturing engineer.
5. Buyer’s Part number and revision level.
6. Approved source(s) of supply: Manufacturer’s name, their P/N, and revision level, for the item(s) that have been qualified and approved by the buyer for use in the critical application(s).
Here is a compilation summary for if anyone finds it handy (and accurate). Comments are appreciated.
Source Control Drawing
Typically used for items that are customized or custom designed by and fabricated by a supplier in a specialized segment of industry upon request of one customer. Includes items that require specific performance, testing, installation, interchangeability, or other specific characteristics.
Source Control Drawings recognize the difference between the buyer’s goals and the manufacturer’s goals and needs, by defining the content of the buyer’s drawing. The buyer’s drawing specifies that which the buyer and user see. The manufacturer’s drawings and procedures define how to meet the buyer’s procurement drawing.
As with other types of drawings, they may be tabulated for convenience and to reduce likelihood of errors due to unintended differences between the similar items.
Contents:
1. Drawing: A high level engineering drawing with the buyer’s P/N and revision level. It specifies features the buyer and user see or use. It generally does not include internal features unless needed by the manufacturer as noted below. It usually includes depictions, provided by the manufacturer, of the item.
2. Requirements: Size and shape constraints, interface, interchangeability, aesthetics, installation, environment, performance, life, characteristics required for critical applications, production constraints, and other parameters that are suspected to possibly affect performance or other requirements but cannot be fully anticipated or specified.
If the requirements are numerous, and are not associated with particular components on the drawing, they can be located on a supporting, specification document (e.g. Word file).
3. Qualification equipment, procedure, and criteria. It might also specify who performs or is responsible for it – e.g., the buyer, a regulatory agency, or third-party test house.
4. Acceptance criteria: This defines equipment, procedures and appropriate criteria and criticality that are not obvious to a manufacturing engineer.
5. Buyer’s Part number and revision level.
6. Approved source(s) of supply: Manufacturer’s name, their P/N, and revision level, for the item(s) that have been qualified and approved by the buyer for use in the critical application(s).
