5-piece substructure w/ 37-3/4”od rotary table, split master bushing, (2) 40’ & (1) 25’ ladders

NATIONAL 1500

Item #

36178

Make

NATIONAL

Model

1500

OTHER/NOTES

20’H box-on-box substructure for National 110 1500 HP drilling rig; 5-piece substructure w/ 37-3/4”od rotary table, split master bushing, (2) 40’ & (1) 25’ ladders