Source: Lock Industry Standards and Training
(LIST) Council
Magic Number
(n.) In a properly combinated core, the
numeric difference between the control
cut and the size of the top pin.
Source: Lock Industry Standards and Training
(LIST) Council
Magnetic Contact
(n.) An electrical switch activated by
magnetic attraction or repulsion.
Source: Lock Industry Standards and Training
(LIST) Council
Magnetic Latch
(n.) A latch which uses magnetic force
to stay engaged with its strike.
Source: Lock Industry Standards and Training
(LIST) Council
Magnetic Stripe
(n.) A thin layer of material consisting
of oriented ferromagnetic oxide particles
held together by a resin binder and bonded
to a non-magnetic surface such as paper
or plastic.
Source: Lock Industry Standards and Training
(LIST) Council
Magnetically Positioned Pin
(n.) A pin tumbler requiring magnetic energy
to position it, rather than springs or
gravity.
Source: Lock Industry Standards and Training
(LIST) Council
Maid's Master Key
(n.) The master key in a hotel master key
system given to the maid. It operates only
cylinders of the guestrooms and linen closets
in the maid's designated area.
Source: Lock Industry Standards and Training
(LIST) Council
Maison Key System
(n.) [from the French, meaning "house" key
system] A keying system in which one or
more cylinders are operated by every key
(or relatively large numbers of different
keys) in the system; e.g., main entrances
of apartment buildings operated by all
individual suite keys of the building.
Source: Lock Industry Standards and Training
(LIST) Council
Man Door
(n.) A door designed to allow access by
a person. It may be located in a wall,
or in another, larger, door which has other
purposes.
Source: Lock Industry Standards and Training
(LIST) Council
Man Trap
(n.) A sally port designed for pedestrian
traffic.
Source: Lock Industry Standards and Training
(LIST) Council
Manipulate
(v.) A dialing process typically used with
combination locks to determine operational
status of the lock, potential combinations
or attempt to free the mechanism.
Source: Lock Industry Standards and Training
(LIST) Council
Manipulation
(n.) A opening method for mechanical combination
locks which uses the tolerances of that
lock to determine an opening combination.
Source: Lock Industry Standards and Training
(LIST) Council
Manipulation Key
(n.) Any key other than a correct key which
can be variably positioned and/or manipulated
in a keyway to operate a lock or cylinder.
Source: Lock Industry Standards and Training
(LIST) Council
Manipulation Proof
(n.) A combination lock with features designed
to prevent determining the combination
without physical attack.
Source: Lock Industry Standards and Training
(LIST) Council
Manipulation Resistant
(n.) A combination lock with features that
prevent determining the combination without
physical attack within a specific time
limit.
Source: Lock Industry Standards and Training
(LIST) Council
Manual Dogging
(n.) 1. An exit device that requires a
physical action to dog it.
(v.) 2. Using a wrench or a special key
to dog an exit device.
Source: Lock Industry Standards and Training
(LIST) Council
Manufacturer Reset Code
(n.) In an electronic lock, a factory-set
or user-set code or combination that will
restore the factory default settings.
Source: Lock Industry Standards and Training
(LIST) Council
Master Blank
(n.) A key blank used in a complementary
keyway lock, on which only the master key
combination is intended to be cut.
Source: Lock Industry Standards and Training
(LIST) Council
Master Code
(n.) In an electronic lock, a factory-set
or user-set combination that must be used
before programming the lock.
Source: Lock Industry Standards and Training
(LIST) Council
Master Disc
(n.) A special disc tumbler with multiple
gates to receive a sidebar.
Source: Lock Industry Standards and Training
(LIST) Council
(n.) The number of different usable change
keys available under a given master key.
Source: Lock Industry Standards and Training
(LIST) Council
Master Key System
(n.) 1. Any keying arrangement which has
two or more levels of keying.
(n.) 2. A keying arrangement which has
exactly two levels of keying.
Source: Lock Industry Standards and Training
(LIST) Council
Master Key
(n.) 1. A key that opens every one of a
given set of locks. Also called passkey.
(n.) 2. Key that secures entrance everywhere.
Source: Dictionary.com
(n.) 1. A key which operates all the master
keyed locks or cylinders in a group, each
lock or cylinder usually operated by its
own change key.
(v.) 2. To combinate a group of locks or
cylinders such that each is operated by
its own change key as well as by a master
key for the entire group.
(n.) 3. An automotive key which operates
all or most locks on a vehicle where there
is also a valet key employed.
Source: Lock Industry Standards and Training
(LIST) Council
(adj.) 1. Of or pertaining to a cylinder
or group of cylinders which are or are
to be combinated so that all may be operated
by their own change key(s) and by additional
key(s) known as master key(s).
(adj.) 2. A warded lock whose warding has
been designed to allow different hierarchies
of keys to operate.
Source: Lock Industry Standards and Training
(LIST) Council
Master Keyed Only
(adj.) Of or pertaining to a lock or cylinder
which is or is to be combinated only to
a master key.
Source: Lock Industry Standards and Training
(LIST) Council
Master Lever
(n.) A lever tumbler which can align some
or all other levers in its lock so that
their gates are at the fence. It is typically
used in locker locks.
Source: Lock Industry Standards and Training
(LIST) Council
Master Pin
(n.) 1. Usually a cylindrical shaped tumbler,
flat on both ends, placed between the top
and bottom pin to create an additional
shear line.
(n.) 2. A pin tumbler with multiple gates
to accept a sidebar.
Source: Lock Industry Standards and Training
(LIST) Council
Master Ring
(n.) A tube shaped sleeve located between
the plug and shell of certain cylinders
to create a second shear line. Normally
the plug shear line is used for change
key combinations and the shell shear line
is used for master key combinations.
Source: Lock Industry Standards and Training
(LIST) Council
Master Ring Lock/Cylinder
(n.) A lock or cylinder equipped with a
master ring.
Source: Lock Industry Standards and Training
(LIST) Council
Master Wafer
(n.) A ward used in certain binary type
disc tumbler key-in-knob locks.
Source: Lock Industry Standards and Training
(LIST) Council
(n.) A flat semi flexible device which
opens or closes a circuit when rated pressure
is applied.
Source: Lock Industry Standards and Training
(LIST) Council
Matrix Format Master Keying
(n.) A method of generating combinations
and assigning key symbols in a master key
system through the use of a matrix.
Source: Lock Industry Standards and Training
(LIST) Council
Maximum Adjacent Cut Specification
(n.) The maximum allowable difference between
adjacent cut depths.
Source: Lock Industry Standards and Training
(LIST) Council
Maximum Compound Cut Specification
(n.) The maximum allowable difference between
the different depths of a compound cut.
Source: Lock Industry Standards and Training
(LIST) Council
Maximum Opposing Cut Specification
(n.) The maximum allowable depths to which
opposing cuts can be made without breaking
through the key blade. This is typically
a consideration with dimple keys.
Source: Lock Industry Standards and Training
(LIST) Council
MCCS
(abb.) Maximum Compound Cut Specification
Source: Lock Industry Standards and Training
(LIST) Council
Media Safe
(n.) A security container designed to maintain
an internal temperature at which multi-media
will remain reliable for a set period of
time.
Source: Lock Industry Standards and Training
(LIST) Council
Mesh Change
(n.) A type of hand change combination
lock wheel, consisting of an inner and
outer wheel which engage each other by
intermeshing teeth.
Source: Lock Industry Standards and Training
(LIST) Council
Metal Desk Lock
(n.) A cabinet lock with a vertically sliding
bolt located at the rear of the cylinder.
Source: Lock Industry Standards and Training
(LIST) Council
Meter Lock
(n.) 1. A padlock whose shackle consists
of a single removable post, designed for
locking utility meters or valves.
(n.) 2. Any of several small devices specifically
designed to lock utility meters or valves
and which require either a key or special
wrench for removal.
Source: Lock Industry Standards and Training
(LIST) Council
Milling Cutter
(n.) A key machine cutter with relatively
coarse pitch teeth as opposed to a rotary
file cutter.
Source: Lock Industry Standards and Training
(LIST) Council
Milling Runout
(n.) The distinctive shape caused by the
curved surface of milling cutters at the
bow end of a key blade.
Source: Lock Industry Standards and Training
(LIST) Council
Mis-Cut
(adj.) 1. Of or pertaining to a key which
has been cut incorrectly.
(n.) 2. A mis-cut key.
Source: Lock Industry Standards and Training
(LIST) Council
MK
(abb.) Master Key
Source: Lock Industry Standards and Training
(LIST) Council
MK Section
(abb.) Master Key Section
Source: Lock Industry Standards and Training
(LIST) Council
MK'd
(abb.) Master Keyed
Source: Lock Industry Standards and Training
(LIST) Council
MK'd Only
(abb.) Master Keyed Only
Source: Lock Industry Standards and Training
(LIST) Council
MOCS
(abb.) Maximum Opposing Cut Specification
Source: Lock Industry Standards and Training
(LIST) Council
Mogul Cylinder
(n.) A pin tumbler cylinder with a diameter
of 2.0", whose pins, springs, key,
etc. may also be proportionally increased
in size. It is frequently used in prison
locks.
Source: Lock Industry Standards and Training
(LIST) Council
Monitor Pin
(n.) A device that requires a specific
mechanical feature on a key, such as a
protrusion or the lack of a cut in a specific
area, to allow the lock to operate.
Source: Lock Industry Standards and Training
(LIST) Council
Mortise
(v.) 1. To prepare by removing stock material
from the edge of a door, drawer, frame
or opening to create a recess which allows
the flush fit or insetting of relevant
lock or other hardware.
(n.) 2. The cavity prepared by mortising.
(adj.) 3. Of or pertaining to a locking
device designed to fit in a mortise preparation.
Source: Lock Industry Standards and Training
(LIST) Council
Mortise Cylinder
(n.) A threaded cylinder typically used
in mortise locks of American manufacture.
Source: Lock Industry Standards and Training
(LIST) Council
Mortise Exit Device
(n.) An exit device designed for mortise
installation.
Source: Lock Industry Standards and Training
(LIST) Council
Mortise Lock
(n.) A lock installed in a hollowed out
or mortised cavity.
(n.) A lockset the case of which is designed
to fit in a mortise in the edge of a door
or drawer.
Source: Lock Industry Standards and Training
(LIST) Council
Motion Alarm Lock
(n.) A security locking device which audibly
alerts upon sensing motion.
Source: Lock Industry Standards and Training
(LIST) Council
Movable Key Insert
(n.) Any device pressed into or connected
to a key blank, such that its presence
and movement are required for proper key
operation, and the absence of which results
in a lockout.
Source: Lock Industry Standards and Training
(LIST) Council
Movement
(n.) A mechanical, electronic or electro-mechanical
timer, designed to inhibit the final unlocking
of a combination lock or timelock.
Source: Lock Industry Standards and Training
(LIST) Council
MP
(abb.) Manipulation Proof
Source: Lock Industry Standards and Training
(LIST) Council
MR
(abb.) Manipulation Resistant
Source: Lock Industry Standards and Training
(LIST) Council
MS
(abb.) Maximum Security. A trademark of
the Adams Rite Manufacturing Co.
Source: Lock Industry Standards and Training
(LIST) Council
Mullion
(n.) A vertical center post in the frame
of a pair of doors.
Source: Lock Industry Standards and Training
(LIST) Council
Multi-Color Finish
(adj.) Of or pertaining to a lockset whose
finish is different for different trim
components on one side of a door.
Source: Lock Industry Standards and Training
(LIST) Council
Multi-Part Key
(n.) Any bit key not able to be duplicated
by a single casting process.
Source: Lock Industry Standards and Training
(LIST) Council
Multi-Point Lock
(n.) A lock which has more than one bolt
which are thrown and withdrawn simultaneously,
often in more than one direction.
Source: Lock Industry Standards and Training
(LIST) Council
Multi-Section Key Blank
(n.) A key section which enters more than
one, but not all keyways in a multiplex
key system.
Source: Lock Industry Standards and Training
(LIST) Council
Multiple Gating
(n.) A means of master keying by providing
a tumbler with more than one gate.
Source: Lock Industry Standards and Training
(LIST) Council
Multiplex Key Blank
(n.) Any key blank which is part of a multiplex
key system.
Source: Lock Industry Standards and Training
(LIST) Council
Multiplex Key System
(n.) 1. A series of different key sections
which may be used to expand a master key
system by repeating bittings on additional
key sections. The keys of one key section
will not enter the keyway of another key
section. This type of system always includes
another key section which will enter more
than one, or all of the keyways.
(n.) 2. A keying system which uses such
keyways and key sections.
Source: Lock Industry Standards and Training
(LIST) Council
Muntin
(n.) A structural member in a door or window
used to divide a large lite into smaller
ones.
Source: Lock Industry Standards and Training
(LIST) Council
Mushroom Pin
(n.) A pin tumbler, usually a top pin,
which resembles a mushroom. It is typically
used to increase pick resistance.
Source: Lock Industry Standards and Training
(LIST) Council
Mykey Chart
(n.) A matrix depicting user requested
cross keying by listing keys along one
axis and openings along the other. So named
because it is frequently accompanied by
the statement "My key goes here and
here and here."
Source: Lock Industry Standards and Training
(LIST) Council
|
|
|
|
