This specification establishes requirements for automatic shutoff@ quick-disconnect coupling assemblies for fuel and oil lines. Classification: Quick-disconnect couplings shall be of the following types and classes: Type I - Fuel Line Coupling Class A: -65 to +135 ??fuel and +160 ??ambient Class B: -65 to +200 ??fuel and +350 ??ambient Class C: -65 to +300 ??fuel and +600 ??ambient Type II - Oil Line Coupling Class A - Petroleum Oil (J1966): -65 to +250 ??oil and +160 ??ambient Class B - Synthetic Oil (MIL-PRF-7808): -65 to +350 ??oil and +350 ??ambient Class C - Synthetic Oil (MIL-PRF-23699): -40 to +400 ??oil and +400 ??ambient