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Polished brass mortise turn knob cylinder, 15/16 inch, solid brass finish

Kaba Group

Kaba Group 41651SC1-03 Polished Brass 15/16" Mortise Turn Knob Cylinder Door Lock

SKU CH-KNA2-J42H9 MPN 41651SC1-03

Solid brass mortise turn knob cylinder with thumb-turn operation, 15/16" length and standard cam for 1.150 x 32 UNS threads

  • FinishPolished Brass
  • Solid brass construction resists wear and corrosion
  • Polished brass US3 finish matches traditional door hardware
  • 15/16" length fits standard mortise lock preparations
  • Thumb-turn operation allows keyless exit from inside
  • Standard cam #1 works with common mortise lock bodies

Polished Brass Mortise Cylinder Lock

The Kaba Group 41651SC1-03 is a solid brass mortise cylinder with a captive turn knob for keyless operation. It suits interior or exterior doors where a thumb turn is preferred on one side. The 15/16 inch length fits standard door thicknesses with the specified thread profile.

Sustained Operation And Durability

Machine cut from solid brass bar stock, the cylinder resists wear from repeated daily turning. The five pin tumbler mechanism maintains smooth engagement over extended use without binding. Solid brass construction withstands humidity and temperature changes on exterior doors without corrosion or seizing.

Threaded Mount And Cam Compatibility

The 1.150 x 32 UNS thread mates with common mortise lock bodies using a 1.360 inch diameter face. Standard Cam #1 operates Adams Rite and similar latch mechanisms directly. Thumb turn only design means no key management is required for the secured side of the opening.

Highlights

  • Solid brass construction resists wear and corrosion
  • Polished brass US3 finish matches traditional door hardware
  • 15/16" length fits standard mortise lock preparations
  • Thumb-turn operation allows keyless exit from inside
  • Standard cam #1 works with common mortise lock bodies

Specifications

BrandIlco
Model41651SC1-03
FinishPolished Brass

Questions about this item

Does the 15/16" mortise cylinder generate any heat or noise during continuous daily use?

No — it is a solid-brass mechanical cylinder with a thumb turn and no motor, electronics or moving parts that produce heat or sound.

What door preparation must already exist for the 1.150 x 32 UNS thread and 1.360" face diameter to engage?

A mortise pocket cut to accept a 1" long cylinder with 1.150 x 32 UNS threading and a 1.360" (34.5 mm) face bore.

Will the Standard Cam #1 operate a legacy mortise lock body that originally used a different cam?

Only if the existing lock body accepts the Standard Cam #1 profile; other cam shapes will not engage the latch mechanism correctly.

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