Andersen reachout lock cylinder with gears and 2 keys, no tail piece. Fits 200 and 400 series gliding patio doors manufactured 1982 to present. 

NOTE:
Cylinder Includes small gear and two keys.
For installation on gliding doors you do not need the C-ring or the flat cylinder tail piece tab.
Remove C ring and flat cylinder tail piece tab prior to installation.
Newbury lock assembly has used a 6 pin cylinder since January of 2004.
Glass dates from panel do not always represent the vintage of the lock assembly or the replacement key cylinder needed.

Finish: Silver faceplate
Keyway: Schlage 6 pin SC4

Related Andersen Parts:
2500707 - Gear Kit - Keyed Lock - Exterior