4642-3971 Cylinder for LCN 4640 Series Auto-Equalizer Best 45H Series Mortise Locks w/ Sectional Lever Trim 2-5/8" width x 10-5/8" length

2-5/8" width x 10-5/8" length - Lever length: 4-5/8"Clutch mechanism

it not only meets accessibility standards but also facilitates insulation between rooms while ensuring a seamless and fire-rated transition between different floor surfaces

271A: A - Mill Finish Aluminum

SFIC (small format interchangeable core) core sold separately

4642-3971 Cylinder for LCN 4640 Series Auto-Equalizer Best 45H Series Mortise Locks w/ Sectional Lever Trim 2-5/8" width x 10-5/8" lengthLCN 4642 3971 689 Cylinder Only, Aluminum Finish Standard, non handed, cast iron cylinder assembly for 4640 Series Adjustable from size 2 through size 5 (shipped set to size 3) For exterior doors 36" 42" and interior doors 36" 54"