Product Details
Falcon MA551 Holdback Mortise Lock - ANSIF06
Latch bolt operated by lever from either side except when outside lever
is locked from outside by key. Latch bolt can be locked in a retracted
position by key. When outside lever is locked, latch bolt is retracted
by key from outside or by operating inside lever unless latch bolt has
been locked in a retracted position. Auxiliary dead latch. Note: Chassis
is handed. To activate the Holdback Function from the unlocked
position rotate the outside lever/knob to retract the latchbolt. Rotate
key 360 degrees. Release lever/knob. To release Holdback Function,
rotate key 360 degrees clockwise.
Available in the following trim styles:

MA Series Lock Features
Door thickness:Standard accommodates thickness of 1-3/8 to 2-1/2".
Backset:2-3/4 only.
Case:Cold formed steel, zinc dichromate plated, .090thick.
Hubs:Hardened steel.
Handing:Right hand is standard; left hand optional. Reversible in the field.
Cylinders:Solid brass cylinder and plug.Standard mortise cylinders are furnished as 5-or 6-pin as standard. 6 or 7-pin are available on
interchangeable core cylinder.
Furnished with two nickel silver keys standard
Keyways:G keyway standard on standard cylinder.
A keyway standard on I/C cylinder.
Bind Resistant Trim:Heavy-duty through-bolted inserts clamp the trim on the door assuring proper alignment. Provided with 8-32 screws for strength and thread sealant to prevent loosening.
Latch Bolt:Two-piece stainless steel, mechanical anti-friction bolt. 3/4 projection.
Dead Bolt:1throw, stainless steel with two 13/16diameter hardened steel, free-turning, saw-resistant roller.
Faceplates:(Armored Front) 1-1/4x 8brass or stainless steel adjustable for door bevel. Reinforced by heavy gauge steel with stabilizing ribs.
Strike:Brass or stainless steel. Meets ANSI AII5.1 for frame preparation. Strike is non-handed.
Electrified Functions:Available in 12 or 24 VDC. ANSI/BHMA: Meets ANSI/BHMA 156.13, Series 1000.
UL:3 hour A label.
Model: Falcon MA551, DG, Dane-Gala, QG, -Quantum-Gala, SG, Sutro-Gala, DN, Dane-Napa, QN, -Quantum-Napa, SN, Sutro-Napa, HG, Hana-Gala, HN, Hana-Napa, 626, Satin Chrome, 613, Oil Rubbed Bronze, 630, Satin Stainless Steel, MA551DG, MA551QG, MA551SG, MA551HG, MA551DN, MA551QN, MA551SN, MA551HN, MA551DG626, MA551DG613, MA551DG630 ,MA551QG626, MA551QG613, MA551QG630, MA551SG626, MA551SG613, MA551SG630, MA551DN626, MA551QN626, MA551SN626, MA551HG626, MA551HN626