S4903 Narrow Stile Mortise Device

Chassis: Non-ferrous alloy

Chassis cover:
Cold drawn brass, bronze or stainless steel

Door Types:
Wood, hollow or metal

Door Thickness:
1-3/4" (44.45 mm) standard, up to 2-1/4" (57.15 mm) available

Stile: 4-1/2" (114.30 mm) minimum

Mounting:
Supplied with wood and machine screws. Available with thru bolts.

Handing: Handed. Specify LHRB or RHRB

Dogging:
Allen-type standard. Available with cylinder dogging (prefix CD)

Top/bottom bolts: N/A

Latchbolt:
Brass, 3/4" (19.05 mm) throw

Rail:
Roll formed brass, bronze or stainless steel

Rail Projection:
3-1/4" (82.55 mm) maximum

Opening Height: N/A

Fire Exit Hardware–up to:
4' x 8' single door
8' x 8' pairs of doors

Finishes:
US3,US4,US10,US10B,US26,US26D

Certification & Compliance
• ANSI/BHMA A156.3, Grade 1
• ANSI A117.1 Accessibility Code
• Underwriters Laboratories (UL and CUL) listed for accident hazard (panic) standard.
• Fire Exit hardware for hollow metal doors, UL and CUL listed for 3 hour, A label and
lesser doors, Prefix “F” before part number.
• Fire Exit hardware for wood doors, listed up to 1-1/2 hour, B label doors, prefix “F” before part number.
• All exit devices comply with life safety code NFPA 101.
• All fire rated devices comply with fire door and window code NFPA80.