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Polished brass dummy mortise cylinder with thumb turn, 1-1/8 inch length

Kaba Group

Kaba Group 7180DC-03 door lock 1-1/8" dummy mortise cylinder polished brass

SKU CH-1DCR-V3EYH MPN 7180DC-03

A solid-brass dummy mortise cylinder with a polished brass finish, 1-1/8 inch length, Adams Rite Cam #2 and 1.150 x 32 UNS threads for mortise lock replacement

  • FinishPolished Brass
  • Selling UnitBox
  • TypeDummy Mortise Cylinder
  • KeyingKeyed Different
  • Solid brass construction resists corrosion for long-lasting performance
  • Polished brass US3 finish matches traditional hardware aesthetics
  • 1-1/8 inch length fits standard mortise lock preparations
  • Adams Rite cam #2 ensures compatibility with common lock bodies
  • Thumb-turn operation provides keyless convenience for interior doors

Solid brass dummy mortise cylinder

The Ilco 7180DC-03 is a solid brass dummy mortise cylinder finished in US3 polished brass. It measures 1-1/8" in length with a cylinder face diameter of 1.360 (34.5mm). The unit features an Adams Rite Cam #2 and a thread size of 1.150 x 32 UNS. It operates via a thumb turn with no keyway, making it suitable for passage or privacy functions on interior and exterior doors.

Installation fit and mechanical operation

This cylinder installs into mortise locks that accept the 1.150 x 32 UNS thread specification and 1.360 diameter face. The solid brass construction resists corrosion in indoor and outdoor environments. The dummy design means there is no key mechanism to operate or maintain. Mechanical action is limited to the thumb turn rotation, which engages the connected mortise lock latch or bolt.

Supplied as a single keyed-different unit

The product is sold individually in a box, keyed different by default. No keys, mounting screws or additional hardware are included in the package. The thumb turn is integrated into the cylinder assembly. Installers must supply any required set screws or trim components separately to complete the mortise lock installation.

Highlights

  • Solid brass construction resists corrosion for long-lasting performance
  • Polished brass US3 finish matches traditional hardware aesthetics
  • 1-1/8 inch length fits standard mortise lock preparations
  • Adams Rite cam #2 ensures compatibility with common lock bodies
  • Thumb-turn operation provides keyless convenience for interior doors

Specifications

BrandIlco
Model7180DC-03
FinishPolished Brass
Selling UnitBox
TypeDummy Mortise Cylinder
KeyingKeyed Different

Questions about this item

How do I install the 1-1/8" dummy mortise cylinder so the Adams Rite Cam #2 engages correctly?

Thread the solid brass cylinder into the mortise lock using the 1.150 x 32 UNS threads until the 1.360 diameter face seats flush, then verify the Adams Rite Cam #2 rotates the latch bolt when the thumb turn is operated.

What maintenance will the polished brass finish and solid brass body need over time?

Clean the US3 polished brass with a soft cloth and mild brass polish to remove tarnish; lubricate the thumb turn mechanism annually with dry graphite powder to keep the cam moving freely.

What is the first limitation that appears when the thumb turn is operated repeatedly under heavy door pressure?

The Adams Rite Cam #2 can bind if the mortise lock's latch bolt is misaligned, so the cylinder face may not turn smoothly until the door and frame are adjusted for even latch engagement.

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