One of the ties of the fourth qualifying round takes place at Victoria Road as Orient make the 12 mile journey to take on their London and National League rivals.
The Daggers have reached the first round for the last 11 years although this is only their second appearance at this stage.
Having been in the Football League for so long, Orient last competed in the competition's qualifying rounds 97 years ago.
After a disappointing defeat at Woking last Saturday, Nunn wants to put things right on the weekend. He said: "At Boreham Wood and Chelmsford City we had some good runs. We took Wycombe to a replay in the second round and also had a replay with Carlisle.
"Fingers crossed we can go on a good run this year. If we got a lower league side in this round, chances our we'd have got a higher league one in the next round so each game is going to be tough.
"The FA Cup is a leveller, each game is a cup final. We're excited and looking forward to putting the result right from last week."