Falcon MA531 Apartment Corridor Door Lock, Grade 1 Mortise Lock Set

Click here to view the Falcon MA Series from the Falcon Full Line Catalog

Falcon MA531 Lock Set's latch bolt operated by knob/lever from either side, except when outside knob/lever is made inoperative by buttons in face. Dead bolt operated by key outside or turn inside. Key outside operates both bolts. Operating inside knob/lever retracts both bolts and outside remains locked. Latch bolt is deadlocked when outside knob/lever is made inoperative or when the dead bolt is projected. When dead bolt is retracted, knob/lever is unlocked by buttons in face. Inside  knob/lever is always free for immediate egress.

Extra Heavy Duty, Commercial, Grade 1

Lever Style: 8 Styles available in Gala trim style or in Napa trim style. Choose from options above.

Finishes: See options above, See Falcon Finish Chart for a detailed list of Falcon's finishes.

Split Finishes: Lock can be purchased with one finish for the outside section of the lock and another for the inside. (Available through our office.)

Trim: 

• 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.
• All trim is cast, forged, or wrought and through bolted with thread patch coated screws. Lever trim to have individual heavy duty springs for lever return, and independent rotation in both directions. Return to door style levers meets the 1/2" California State Fire Marshall requirement.

Interchangeable Cores: (Can be purchased through our office) 

Security: Lock case is interchangeable for knob or lever applications without modifying the chassis, and is constructed with a screw configuration that limits access to operating parts

Additional Cylinder Options: (Can be purchased through our office.)

• Construction Cores
• Small Format Interchangeable Core (SFIC), Uncombinated or Combinated
• Large Format Interchangeable Core (LFIC)

Door Thickness: 1-3/4" - 1-7/8". Other door thicknesses available through our office.

Backset: 2-3/4" 

Latch: 2-piece stainless steel anti-friction bolt with 3/4" projection.

Strike: 

• 1-1/4" x 4-7/8", ANSI, Square corner, with dust box
• Brass or stainless steel. Meets ANSI AII5.1 for frame preparation. Strike is non-handed

Case: Cold formed steel, zinc dichromate plated, .090” thick. 

Spindle: Spindles to be independent, designed to ‘breakaway’ at a maximum of 480 in./lbs. to prevent damage to the lock chassis.

Latch bolt: Two-piece stainless steel, mechanical anti-friction bolt. 3⁄4" projection, field reversible. 

Hubs: Hardened steel

Faceplates: (armored front) 1-1/4" x 8" brass or stainless steel adjustable for door bevel. Reinforced by heavy gauge steel with stabilizing ribs.

Functions: 

• See MA Series Lever Functions for more information

Options available through our office only:

• Lock can be purchased with one finish for the outside section of the lock and another for the inside.
• Lead Wrapping Case
• Abrasive Lever Coating
• Knurled levers
• Additional latchbolts and strikes
• Blocking ring and cylinder guards
• Dust Boxes
• Additional Keys
• Large Bow Keys 

Compliance Details: 

• Locksets comply with ANSI A156.13, Series 1000, Operational Grade 1 and Security Grade 1 with all standard trims and conventional mortise cylinders.
• Locksets comply with UL10B - neutral pressure and UL10C/UBC 7-2 –positive pressure testing requirements. 
• SFIC Interchangeable Core Cylinders: Grade 3 Security
• All locks are UL-listed for a 3-hour fire door.

Priced Per Set. 

Please note, images are for illustrative purposes only. They are not actual photos. Therefore, actual colors may vary slightly and size may be enlarged to show detail. Template is not drawn to scale. Accurately scaled template will be supplied with your order.

Product has a 1-year warranty against defects in material and workmanship
 Click to view our Full Warranty Policy.

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