Flown-used Discovery #2 main engine gimbal bolt flown on the space shuttle Discovery mission STS-95 during John Glenn’s return to space in 1998. Bolt is numbered MD111-4035-0001 and measures 4.75″ long with the diameter of the head measuring 1.25″. This was one of eight bolts from Engine #2 of shuttle Discovery (OV-103) which were bolted to Discovery’s main engine gimbal bearing assembly located between the main engine and the orbiter. Upon inspection after landing, this bolt was removed because of flight hardware damage due to its expired torque/time cycle limit. Accompanied by a color copy of the parts removal tag, task maintenance form, and supporting paperwork and documentation. RRAuction COA.
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