armor face

volte-face / volte face

face-to-face combat

face-to-face contact

armor ballistic bullet proof face mask

armor face mask

face-hardened armor

ricochet off the armor face

armor piercing projectile / armor-piercing projectile

armor kill / armor killing area

block face

breech face

desertion in the face of the enemy

face of the bolt

face paint

Future Airborne Capability Environment (FACE)

home-made face filter

muzzle face

the face of opposition

trunnion face

double-face hammer

face of bolt

face of cylinder

face of piston ring

face of the cylinder

face of the muzzle (of the piece)

guide face

valve face

back face of a shock wave

camber face of an aerofoil

camber face of an aerofoil section

wing face

suction face of a propeller blade