socket head

socket head cap screw

penetrating head injury / open head injury

drop head body (drop-head body)

head-to-head flyoff

infrared homing head (IR homing head)

ball socket

fuse socket

socket wrench

breech piece socket

taillight socket

trunnion socket

antiaircraft mounting socket

ball-and-socket bearing

ball-and-socket hinge

ball-and-socket joint

ball-and-socket support

fuze socket

connector socket

socket

handle socket

case head

cylinder head

general purpose head

head count (headcount)

head harness

head injury criterion (HIC) (med.)

Head of Directing Staff (HDS) (exercises)

Head of Logistics

Head of Mission

head room

head wind

head-on approach