Eastleigh's FA Cup run was ended with a 3-1 third-round replay defeat to Newport.
Reaching the third round represented the Vanarama National League side's joint-best run in the competition and they earned a home replay with a 1-1 draw at Rodney Parade.
But the Sky Bet League Two outfit showed their class to earn a home tie against Manchester United in the fourth round.
The Exiles got off to the perfect start as Aaron Wildig nipped in to pounce on a loose ball in the box to put the visitors ahead in the third minute.
Former Morecambe man Wildig came close to a second, but he could only find the side netting later in the half.
Top scorer Paul McCallum, a former West Ham youngster, levelled shorty after the restart with a thunderous half-volley.
Veteran defender James Clarke, who scored in the first tie, restored County's lead on the hour-mark.
Newport found the side netting again, this time through Seb Palmer-Houlden.
Will Evans eventually put the game to bed with 10 minutes to go.
Eastleigh stopper Joe McDonnell produced a good save to keep out Byrn Morris late on.
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