Yohan Cabaye's second-half goal was enough to earn Newcastle their first win at Old Trafford in 41 years, and condemn United to back-to-back home defeats in the Premier League for the first time since 2002.
"I have great respect for David (Moyes)," said Pardew.
"But I remember the FA Cup final in 1990 when they scored with eight minutes to go. They got out of jail because we should have won.
"They stood by him (Sir Alex Ferguson). David might have to have a year like that where it's touch and go but he'll come through it because he's a strong man."
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