NASA uses NHB 5300.4(3G) "Requirements for interconnecting cables harnesses, and wiring" There is also mil-std-2000 (which may, or may not be released) for "soldering electrical and electronic assemblies" Also Mil-std-454 "Standard general req. for electronic equipment" These are the customer specs that I have to go by. Bill Gaines AeroJet (for $) 1100 Hollyvale, Azusa, Calif. 91702-0298 IEPS (for info) [log in to unmask] IHPVA (for speed & fun) P.O. Box 51255, IN, IN 46251-0255 SCCA (for trophys) Solo II (818-988-RACE)=================================================== /| _ _ _ /_||_ |_ | / ||_ _| |_ =================================================== [log in to unmask]