This stuff is not very flexible due to the impregnated glass braid. May be useful for longer runs. A bit dirty from being schlepped around for years.
The Allied Wire & Cable blurb:
"M5086/2-01 1/0 Gauge MIL-W-5086/2 | SAE AS50861/2 Cable
Our M5086/2-01 1/0 gauge cable is part of our Mil-Spec...