A1 Quick Release 1/4-20 Screw
A2 1/4 Thumbscrew
A3 3/8 Thumbscrew
A4 Bubble Level (uses 2 bubbles)
A5 Thumb Lever
A5 USED Thumb Lever
A6 Top Plate Assembly (not a stock item)
A7 QR Safety Pin
A8 Thumbscrew Pivot and Nut
Items B1 to B11 are mostly internal parts
B1 Main Casting (not a stock item)
B2 Friction Ring (not a stock item)
B3 Ball (not a stock item)
B4 Ball Seat & Washers (not a stock item)
B5 Bevel Washer (not a stock item)
B6 Ball Seat (not a stock item)
B7 Friction Assembly
B8 Base Plate (not a stock item)
B9 Bearings (not a stock item)
B10 Retaining Pin (not a stock item)
B11 Bullet Catch (not a stock item)
C Pan Rotation Lock Knob
D Ball Control Lock Knob
E1 Pan Tension Knob
E2 Pan Tension Shaft
F Ball Tilt Limiter (not a stock item)
Editor note: Click on the numbered link to see the actual part picture.