Back Figure 2-7. Attaching Pack Tray to the T-10B Harness | Up TM-10-1670-271-23P Parachute Personnel Type: 35-Foot Diameter T-10B Troop Back Parachute Assembly NSN 1670-00-091-0720 Manual | Next Adapting the T-10B Parachute Harness to Open-Circuit Scuba Equipment |