The Model 8 Marks V, 6 & 7 were designed to meet a NATO specification and were standard issue to NATO services.
The NATO specification allows a higher chamber pressure.
Hawker took the planned Pegasus engine as a basis for a plane that could meet the current NATO specification for a Light Tactical Support Fighter.
The NATO specification measures pressure differently, which can lead to higher allowable peak pressures.
It was developed to meet a NATO specification, but Italy was initially the only NATO member to adopt the type.
The systems can be used underwater to a dept of 80 m and comply with MIL- and NATO specifications.
In 1952 it was decided that Rygge was to become a military air station which met NATO specifications.
All the products that U.S. Ordnance develops are per NATO specifications.
Next, Hawker Aircraft came up with a design for an aeroplane that could meet the NATO specification for a "light tactical support fighter".
The design was in response to a NATO specification for a VTOL strike fighter.