Medeco 2020073 6-Pin Key-in-Knob/Lever Retrofit Cylinder for Arrow MK, Falcon, LSDA, Schlage ND & AL, Yale YMCL Series

Medeco 2020073 6-Pin Key-in-Knob/Lever Retrofit Cylinder for Arrow MK, Falcon, LSDA, Schlage ND & AL, and Yale YMCL Series

The Medeco 2020073 is a 6-pin Key-in-Knob/Lever retrofit cylinder engineered to replace cylinders in a wide range of popular commercial cylindrical locksets, including Arrow MK Series, Falcon inside cylinder, LSDA 100 B Knob, Schlage ND & AL Series, and Yale YMCL100 and 200 locksets. Constructed of durable machined brass components, this cylinder delivers the high-security key control and physical resistance that Medeco is known for, backed by ANSI A156.30 Level A and ANSI A156.5 Grade 1 certifications. Medeco M4 Key-in-Knob cylinders are UL437 listed for drill and pick resistance with utility patent-pending key control, making this an ideal upgrade for demanding commercial environments.

Key Features

• 6-Pin Cylinder Configuration: Features a 6-pin tumbler design for enhanced security and key control in commercial cylindrical locksets.
• Broad Retrofit Compatibility: Designed to retrofit Arrow MK Series, Falcon inside cylinder, LSDA 100 B Knob, Schlage ND & AL Series, and Yale YMCL100 and 200 locksets without requiring full lockset replacement.
• UL437 Listed: Medeco M4 Key-in-Knob cylinders are UL437 listed for drill and pick resistance, providing verified high-security performance.
• Patent-Pending Key Control: Utility patent-pending key control technology restricts unauthorized key duplication for enhanced access management.
• Durable Machined Brass Construction: Cylinders are constructed of durable machined brass components for long-lasting performance in heavy-use commercial applications.
• Wide Finish Selection: Available in 14 finishes including Bright Brass, Satin Brass, Antique Brass, Satin Brass Blackened, Bright Bronze, Satin Bronze, Oil Rubbed Bronze, Bright Nickel, Satin Nickel, Antique Nickel, Black, Dark Bronze, Bright Chrome, and Satin Chrome to match existing hardware.
• Industry-Leading Retrofit Range: Medeco offers over 100 different cylinder designs and tailpiece configurations, enabling the largest retrofit capability in the industry and reducing the need for complete lockset replacement.

Certifications & Compliance

• UL437 Listed — Drill and Pick Resistance (Medeco M4)
• ANSI A156.30 Level A — Patent-Protected Key Control and Physical Strength (M4, M3)
• ANSI A156.5 Grade 1 — Consistent Quality for Heavy-Use Applications (M4/M4 BiLevel, M3)

Technical Specifications

• Product Family: Key-in-Knob/Lever Cylinder
• Pinning: 6-Pin
• Compatible Hardware: Arrow MK Series, Falcon Inside Cylinder, LSDA 100 B Knob, Schlage ND & AL Series, Yale YMCL100, 200
• Certification: UL 437 Listed; ANSI/BHMA A156.30 (M4); ANSI/BHMA A156.5 Grade 1 (M4)
• Construction: Durable machined brass components
• Warranty: 2-year manufacturer's warranty

Typical Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Government and Municipal Buildings
• Multi-Tenant Residential Properties
• Industrial and Warehouse Facilities

Why Medeco?

Medeco retrofit cylinders are built from durable machined brass components and engineered to meet the rigorous demands of commercial security applications. With UL437 listing for drill and pick resistance, ANSI A156.30 Level A key control certification, and ANSI A156.5 Grade 1 quality assurance, the Medeco 2020073 delivers professional-grade security performance across a broad range of compatible lockset platforms — all without requiring a full lockset replacement.