The Locknetics 9100 series electric strikes are replaced with Von Duprin 6211 and 6210 electric strikes.
The 6211 is used if the frame is being replaced. The 6210 is for ...
Schlage H-Series Escutcheons
Part Number
Description
Dimension
07-057
Inside escutcheon and turn
6.92" x 2.75"
07-035
Inside escutcheon, dummy - H170
6.92" x 2...
The replacement for the D871 is the D271. None of the parts are backwards compatible.
D271 description:Thumbturn x Occupancy Indicator
Deadbolt thrown or retracted by turn unit only. ...
The Falcon D400 and D800 series (including the D871) were discontinued in 2008.
The default backset is 2 3/4" and the latch faceplate dimensions are 1 1/8" x 2 1/4".
The latch supplied is the 13-047 deadlatch and 13-048 springlatch.