MH054M0-Q2 version 1 Ball Head

A1 Quick Release 1/4-20 Screw
A2 Quick Release 3/8 Screw - Replaced by 200PL-14
A3 Quick Release 1/4 Anti-Rotate
A4 1/4 Thumbscrew
A5 3/8 Thumbscrew
A6 Top Plate Assembly
A7 Bubble Level (uses 2 bubbles)
A8 Thumb Lever
A9 QR Safety Pin

B1 Main Casting
B2 Friction Ring (not shown)
B3 Ball
B4 Plastic Ball Seat and Washers
B5 Bevel Washer
B6 Ball Seat
B7 Friction Assembly
B8 Base with tripod Screw
B9 Bearing (6 pieces)
B10 Retaining Pin
B11 Bullet Catch

B6-B11 Base and Ball Parts are not pointed since they are all mostly internal.

C Pan Rotation Lock Knob

D Ball Control Lock Knob

E1 Pan Tension Knob (not shown)
E2 Pan Tension Shaft (not shown)

F Ball Tilt Limiter

Editor note: Click on the numbered link to see the actual part picture.

See MH054M0Q2
Manufacturers Parts List