I have a spec that call for the following material: .062 flame retardent glass epoxy board, copper-clad on one or two sides as required. Mil-P-13949, type 6FN (or BMS 8-120, Type 1, class 4, Grade A) I cannot find info on the "6FN" material. The closest I could find was "GFN". Is there such a material as 6FN. And also what is the "BMS" spec? Thanks, -- Michael Zagami Electrical Engineer Fairchild Controls Corp. 301-228-3469 (voice) 301-682-6885 (fax) ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################