Graham Westley's team can look forward to the fourth-round draw, which takes place on Sunday afternoon.
But it is probably the biggest upset for the away side since Ronnie Radford smashed a famous goal as Hereford defeated Newcastle 2-1 in 1972.
See below for a comprehensive circuit map of the closed road course that the riders will tackle within the Hertfordshire town.
Alternatively you can download a PDF version of the map here.
The day kicks off at 10am with an open course ride (any one can have a go), junior competitive racing and Category 4 club racing.
There will be a free bike park, free car parking, free lifestyle and cycling advice, free Dr Bike service and a wide variety of entertainment including live music and much much more.
Stacy Long's strike took a wicked deflection off Mike Williamson before Michael Bostwick struck from distance.
Toon substitute Cheik Tiote then saw red for a wild tackle before Joey Barton pulled one back from 30 yards in injury-time to give United hope.
If you arrive at around 8.15pm then there will be a few people in the bar area who will give you a bit more information about the club, and it's a perfect opportunity to ask any questions.
Peter Winn still had time to slot home as Stevenage avenged their feisty fourth round defeat from 1998.
The home side, currently 13th in the League Two table, held their opponents to a 1-1 draw at Broadhall Way 13 years ago before losing the replay, but they were undoubtedly the superior team on Saturday.
Cycling in Stevenage Stevenage Borough Council has hosted two previous major cycling events, The Women's Tour Stage Four Finish in 2015 and in 2016 The Tour Series which attracted the highest spectator turn out for the whole of the 2016 Series, in hot and sunny conditions.
This year Stevenage is hosting its first Cycling Festival, starting at Easter with a wide range of cycling based activities for the community.