Lock assembly drawing index
Schlage • ND-Series service manual • 9
Function
ANSI/BHMA A156.2, 2011, Series 4000, Grade 1
Trim
Chassis
Schlage
ANSI
Description
Outside function
Inside function
Page
Page
ND66
F91
Store lock
Key locks or unlocks
both levers
simultaneously.
Key locks or unlocks both
levers simultaneously.
70
28
ND70
F84
Classroom lock
Outside lever locked or
unlocked by key.
Inside lever is always
unlocked and always free for
immediate egress.
71
29
ND70 x 80
Classroom by
Storeroom lock
Specify per
XN12-006
Outside lever locked or
unlocked by key.
Key in fixed inside lever
retracts latch.
72
30
ND72
Communicating
lock
Specify per
XN12-002
Outside lever only locked
or unlocked by key.
Inside lever only locked or
unlocked by key.
73
31
ND72 Vandlgard
®
Communicating
lock with
Vandlgard
Specify per
XN12-003
Same as ND72.
Vandlgard allows
outside spindle to
disengage from latch
when locked. Both levers
are clutching.
Same as ND72.
Vandlgard allows inside
spindle to disengage from
latch when locked.
Inside lever is always free for
immediate egress.
74
32
ND73
F90
Corridor lock
Locked or unlocked by
outside key. When locked
by key it can only be
unlocked by key.
Push-button locks from
inside.
Push-button locks outside
lever. Turning lever or closing
door releases button. Inside
lever is always unlocked and
is always free for immediate
egress.
75
33
ND75
F110
Classroom security
lock
Outside lever locked or
unlocked by key in either
lever.
Key locks or unlocks outside
lever. Inside lever is always
unlocked and is always free
for immediate egress.
76
34
ND80
F86
Storeroom lock
Lever is fixed. Entrance
by key only.
Inside lever is always
unlocked and is always free
for immediate egress.
With available request-to-exit
(RX) feature.
77
78
35
36
ND80EL
Storeroom
lock—electrically
locked (fail safe)
Lever is continuously
locked electrically.
Unlocked by key outside
or by switch or power
failure. When locked, key
retracts latch.
Auxiliary latch deadlocks
latchbolt when door is
closed.
Inside lever is always
unlocked and is always free
for immediate egress.
With available request-to-exit
(RX) feature.
79
80
37
38
Note: Any function with a deadlatch locks the latchbolt when door is closed. See page 5 for identification.
Caution: These locks on residences and any door in any structure which is used for egress are a life safety hazard in times of emergency and their use is
not recommended. Installation should be in accordance with existing codes only.
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