Definition
A mounting device used to secure a flight or engine instrument into the instrument panel. The clamp grips the case of the instrument from behind the panel, holding it firmly in place so it cannot shift, vibrate loose, or fall out during flight.
Plain English
A small bracket or fastener that holds an instrument tightly in its hole in the panel so it stays put.
Context Anchor
Seen during aircraft maintenance when cockpit instruments are installed, removed, or checked for secure mounting.
Why Pilots Care
A loose or missing clamp allows an instrument to shift from vibration, producing inaccurate readings or creating a cockpit hazard.
Intuition Check
Do not think of the clamp as part of the instrument’s reading system. It is mounting hardware; its job is to hold the instrument in place.
Example Sentence 1
The mechanic loosened the instrument clamp from behind the panel to remove the airspeed indicator for repair.
Example Sentence 2
During the pre-installation check, the mechanic verified that each instrument clamp was torqued to specification.