Luton pulled one back through Kasey Palmer on 40 minutes, before Liam Roberts made two big saves to send Stags in with a half-time lead.
But Luton found a way back into it with Shayden Morris levelling on 50 minutes.
Stags then held on for what could well have been their toughest point of the season.
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1. Liam Roberts - 8
Great to have him back between the sticks. Made two brilliant saves to deny van den Berg and Shayden Morris as Mansfield rocked just before half-time and one from Palmer in the final 15 minutes. Photo: Getty Images
2. Elliott Hewitt - 7
Solid display at right-back. Read the game well to get in some important blocks and headers. Photo: UGC
3. Deji Oshilaja - 8
Was the boss of the header, winning all that came his way. Put his body on the line during another solid performance from start to finish. Photo: Chris Holloway
4. Ryan Sweeney - 7
As reliable and solid as ever in the heart of the Stags defence. Came close to an early goal when Kal Naismith cleared his shot off the line. Photo: UGC