If its a similar design to the one above then it should be okay!!
Some QR skewers have a rounded edge which fit into the clamp area. Those probably wont work as well because you wont having a rounded edge on your OS BMX Seatclamp that it will fit into.
But if you find a QR skewer that just sits on flat washers like the one below then it'll be alright.
Show us your Seat Clamp!!