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“
old d-series tailpiece
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Question
Answer
What is the length of a Schlage rim cylinder?
Resolution:
The Schlage rim cylinder lengths are given below and were measured from the face of the cylinder to the back of the tailpiece. Because of allowable tolerances for each part the average length is l...:
Why does my AD or CO series lock unlock when the lever is raised?
Resolution:
Installers have reported that their AD-CO Series cylindrical or mortise locks will unlock whenever the outside lever is lifted. This will occur if the outside spindle (square post) is install...:
What is the part number for T lock tailpiece used with a conventional cylinder?
Resolution:
The Falcon T series was discontinued August 12th, 2026 and was replaced by the Falcon TM series. Refer to Table 1 for a list of T lock tailpieces for conventional cylinders. Table 2 show...:
What is the part number for a key in lever tailpiece for the ND lock?
Resolution:
For modular designs: All functions except ND85 the tailpiece part number is N523-022. The ND85 tailpiece part number is N523-123. For non-modular designs: All functions except ND85 the t...: