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May 2009

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Subject:
From:
"McGlaughlin, Jeffrey A" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, McGlaughlin, Jeffrey A
Date:
Wed, 20 May 2009 08:15:42 -0400
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Dave -

The AA portion specifies the thickness tolerance class of the material  (first character) and surface quality (second character) the requirements are in sections 3.8.4.2 and 3.8.3 respectively. Class A is the least stringent in both cases.
The 3 does not appear to be part of the standard definitions under 4101. 


Jeffrey A McGlaughlin, CID
Engineering Designer/EAS
Room 4-2-50
Phone (614)424-7582


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Dave Connitt
Sent: Wednesday, May 20, 2009 6:47 AM
To: [log in to unmask]
Subject: [TN] IPC-4101 specification question

Hi all,
I have an older fabrication drawing here that has a suffix on a material
spec. that I cannot locate in the IPC spec and I was wondering if
anybody can help me out.
The material callout is "IPC-4101/24-C1/C1AA3.
What is AA3 referring to??
Thanks,
Dave Connitt CID+
Printed Circuit Designer
L3 Fuzing & Ordnance Systems
A Wholly Owned Subsidiary of:
L3 Communications
3975 McMann Road
Cincinnati, Ohio 45245
Ph. 513- 943-2010   Fax 513-943-2288

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