The TXR21AB00-0804AI from TE Connectivity / Raychem Brand is shielded backshell, heat shrink adapter with shell size 8, entry size 4 and ring to suit single braid. This backshell has 0.711" (18.05mm) outside diameter, 7/16-28 UNEF thread and 180° cable exit. The TXR21AB00-0804AI include: 1 backshell, 1 braid, 1 O-ring, 2 screws and 1 tinel ring. Operating temperature range is from -65 to 175 °C ( -85 to 347 °F ).