This is a part of a Hawker Hunter nose cone. The original aircraft was a Hawker Hunter F.4 but was later upgraded to a partial F.6 aircraft. The serial number on the cone suggests that it came of the ID-134 airframe built by Fairey in 1957, and was later used possibly by the ID-137 airframe.

the ID-134 airframe was eventually stored Koksijde and sold as scrap. As so for the ID-137 airframe