Surely one of the board shops will have a copy.
I have an old one in my book case and it calls out:
GF= Glass (woven fabric) base, epoxy resin, flame resistant
N = Base material without coloring agent or opacifier.

Sorry, I don't have an electronic copy here, but I'll check on my personal
PC.
The new IPC document is IPC-4101

Best regards,

Mel Parrish
Director, Training Materials and Resources
Soldering Technology International Inc.
102 Tribble Drive
Madison, AL 35758
256 705 5530
256 461 9566 Fax
[log in to unmask]
www.solderingtech.com

  -----Original Message-----
  From: TechNet [mailto:[log in to unmask]]On Behalf Of Dave Dixon
  Sent: Monday, August 25, 2003 3:20 PM
  To: [log in to unmask]
  Subject: [TN] Mil Spec help


  Hi Technetters,
       I am looking for information on board
  material conforming to MIL-P-13949/4 Type GFN.
  I searched for this spec. at assist.daps.dla.mil
  without success.
       Any clues would be appreciated on where to find
  this spec.  Thanks in advance.
  Dave

  Dave Dixon
  Engineering Technician
  Aero-Mach Labs Inc.

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