A-League aspirants South Melbourne are into the FFA Cup's round-of-16 for the first time, while Hakoah Sydney City East completed a stunning come-from-behind extra-time 6-3 victory to seal their spot.
South looked to be heading for extra-time in their round-of-32 clash at Lakeside Stadium, pushed all the way by Edgeworth Eagles and their evergreen 40-year-old A-League champion Daniel McBreen.
But Milos Lujic's 94th-minute header was enough to bag a 1-0 triumph and take the Victorian NPL leaders and four-time NSL champions one stage further than their only other appearance in 2015.
"It's a big club,we know what this game meant," said Lujic, who lifted his club tally to 110 goals in 125 games.
"We have A-League aspirations and hope tonight we showed Australia what we're about."
Match of the night went to Hakoah Sydney City East's late job on a Hills United side playing well above their weight.
Hills, currently third bottom in the NSW NPL2 and a league below their NPL rivals, thrice took a shock lead during 90 minutes of regular time, including a cracking free-kick from Brad Robertson.
But Hakoah never let the game get away at Lily's Football Centre, equalising on each occasion led by two-goal captain Neil Jablonski.
And in extra-time substitutes Gideon Sweet, Alek Lekoski and Lee Jones turned it on to score one apiece and run away with a 6-3 win.
Meanwhile, underdogs Bankstown Berries knocked off the MetroStars, holding out the South Australian NPL heavyweights 2-1 at Jensen Park.
In Perth, Sorrento saw off last year's semi-finalists Canberra United 1-0.
The round-of-32 will resume next Tuesday when Western Sydney Wanderers host A-League rivals Wellington Phoenix, Perth Glory travel to Victoria to face Heidelberg United and Melbourne City head to Queensland to take on Peninsula Power.
Tasmanian outfit Olympia FC Warriors will also welcome NSW NPL pacesetters APIA Leichhardt.