Collins Aerospace 49-270-1 Fuse Plug Fixed Wing OEM Replacement

The Collins Aerospace 49-270-1 is a fuse plug intended for fixed-wing aircraft wheel assemblies. Wheel fuse plugs are thermal safety devices installed in aircraft wheel rims that melt at a calibrated temperature when the wheel overheats — such as after a rejected takeoff or heavy braking — allowing controlled tire deflation before heat-induced pressure can cause an uncontrolled tire failure.

This is an OEM replacement fuse plug produced to Collins Aerospace specifications. The cube-like profile (0.57 x 0.57 x 0.57 in) is characteristic of standard fuse plug designs used in commercial aircraft main wheel rims. Fuse plugs are single-use thermal safety devices and must be replaced after each actuation. ECCN 9A991.d.

Single-use safety device. Replace after every actuation. Sold individually.