This SAE Aerospace Information Report (AIR) establishes guidelines for evaluating composite electrical connectors and accessories. Product Classification Composite connectors and accessories covered by this document shall be of the following types@ grades@ and classes. Types Type I: Circular Type II: Rectangular Grades Grade A: Molded@ Conductive Grade B: Molded@ Nonconductive Grade C: Molded@ Conductive@ Encapsulated Metal Insert Grade D: Molded@ Nonconductive@ Encapsulated Metal Insert Classes Class 1: General duty@ -55 to +150 ??Class 2: General duty@ -65 to +175 ??Class 3: General duty@ -65 to +200 ??Class 4: High temperature@ -65 to +260 ??Class 5: Space grade@ -65 to +200 ??Field of Application Composite connectors and accessories are intended for general use@ where weight reduction and improved corrosion protection are desired.