2-Ear Pinch Clamp, Stainless, 0.669 - 0.787 Inch Clamping Range, 0.335 Inch Width

Vibration is actually one of the conditions this type of clamp was built around. The 2-ear pinch design from Oetiker creates a spring-like tension in the clamp body when installed correctly, which lets it absorb movement and pressure without loosening over time. The clamping range runs from 0.669 to 0.787 inches, so as long as your hose outside diameter lands in that window, you should get a solid, reliable seal on fluid lines in high-vibration environments.

This clamp is listed as having a nominal size of 0.75 inches.