The Magpies head to the Gtech Community Stadium on Saturday, 8th April (kick-off 3pm BST) and United were given an allocation of about 1,700 tickets, most of which are for safe standing in the East Stand.
Sales opened to season ticket holders with 170 or more away points on Friday, 10th March before dropping to 150 on Monday, 13th March.
The requirement was then reduced to 145 on Thursday, 16th March and the final remaining tickets were sold the following day.
There will be no ticket upgrades permitted on matchday. Children 12 and under must be accompanied by an adult.
To purchase tickets for future matches, visit book.nufc.co.uk.