Abstract: A seat assembly for an aircraft is disclosed. The seat assembly includes a seat frame, a track and a track lock assembly slidably connecting the seat frame to the track. The track lock assembly includes a track foot body configured for sliding translation within the track, a pin member having a first end configured for threaded engagement with the track foot body and a second end, and a plunger configured for sliding engagement with the pin member between the first end and the second end and for locking engagement with the track lock assembly.