production lot

This term is defined in ECSS-Q-ST-60-05C Rev. 1 as
number of units of a single device type manufactured on the same production line using the same production techniques, in one uninterrupted period, according to the same component or part design and having the same chips lots and the same materials

This term is defined in ECSS-Q-ST-60-12C as
device types manufactured from the same basic raw materials on the same production line, processed under the same manufacturing techniques and controls using the same type of equipment