Schlage L283-17 Mortise Entrance Lock - ANSI F20

Latchbolt retracted by knob/lever from either side unless outside is locked by 20 Degree rotation of thumbturn. Deadbolt thrown or retracted by 90 Degree rotation of thumbturn. When locked, key outside or knob/lever inside retracts deadbolt and latchbolt simultaneously. Outside knob/lever remains locked until thumbturn is restored to vertical position. Throwing deadbolt automatically locks outside knob/ lever. Auxiliary latch deadlocks latchbolt when door is closed. Inside lever is always free for immediate egress.

605 - Satin Brass,

Handing:
L9000-Series lock bodies are field-reversible without disassembly.

Door Thickness:
1-3/4" (44 mm) standard.

Backset:
2-3/4" (70 mm) only.

Armored Front:
L9000-Series: 1-1/4" x 8" x 7/32" (32 mm x 203 mm x 6 mm) standard.

Case Size:
L9000-Series: 4-7/16" x 6-1/16" x 1" (113 mm x 154 mm x 25 mm)

Spacing:
Knob or lever to cylinder, 3-7/8" (98mm); knob or lever to thumbturn
hub, 2-11/16" (68mm)

Strike:
L9000-Series: ANSI curved lip strike 1-1/4" x 4-7/8" (32 mm x 124 mm) x
13/16" (30 mm) lip to center with dust box standard.

Cylinder & Keys:
6-pin C keyway or Everest C123 keyway cylinder with one keys standard.