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 °F fuel and +160 °F ambient

Class B: -65 to +200 °F fuel and +350 °F ambient

Class C: -65 to +300 °F fuel and +600 °F ambient

Type II - Oil Line Coupling

Class A - Petroleum Oil (J1966): -65 to +250 °F oil and +160 °F ambient

Class B - Synthetic Oil (MIL-PRF-7808): -65 to +350 °F oil and +350 °F ambient

Class C - Synthetic Oil (MIL-PRF-23699): -40 to +400 °F oil and +400 °F ambient