Alan, I looked at MIL-I-23594 on the assist site and according to that document, you want class 2 tape. The classes are defined as follows: Class Backing Thickness (mils) Class 1 1.5 - 2.5 Class 2 2.6 - 3.5 Class 3 3.6 - 4.5 Class 4 4.6 - 5.5 etc... You might want to re-check your suppliers. Eric Kalgren Electrical Engineer Cobham Defense Electronic Systems Continental Microwave Division 11 Continental Drive Exeter, NH 03833 USA Tel: 603-775-5200 Fax: 603-775-5201 E-mail:[log in to unmask] Website: http://www.cobhamdes.com -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Alan Kreplick Sent: Tuesday, May 22, 2007 8:59 AM To: [log in to unmask] Subject: [TN] Looking for 3 mil PTFE Tape Hello Technetters, I'm looking for Type I, Class 3 (3 mil) PTFE (Teflon Tape) per A-A-59474 (Mil-I-23594). I've found a couple suppliers with Class 2 or 4 (2 and 4 mil), but not the 3 (called out on a drawing; can change drawing to use 2 or 4, but just trying to find the 3 mil first). Thanks in advance, Al Kreplick Sr. Manufacturing Engineer Circuit Card Assembly Air-toAir/Precision Strike/Land Combat Raytheon Integrated Defense Systems 978-470-9931office 978-245-1702 pager 978-470-4307 fax [log in to unmask] --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------