These are the codes for each numeric lock you'll find in the game:
Mission 1 First lock - 091772 Second lock - 5929 Mission 4 First lock - 7687 Second lock - 110598 Third lock - 2019 Fourth lock - 110700 Fifth lock - 0614Mission 5 First lock - 97531 Second lock - 33575 Third lock - 1250 Mission 8 First lock - 1436 Second lock - 9753 Third lock - 1456 Fourth lock - 1834 Fifth lock - 7921 Mission 9 First lock - 2126 Second lock - 70021 Third lock - 66768