(n.) The set of tumblers in a lever tumbler
or combination lock.
Source: Lock Industry Standards and Training
(LIST) Council
Packing
(n.) Material used to provide sealing
between chambers of a door closer.
Source: Lock Industry Standards and Training
(LIST) Council
Padlock
(n.) A detachable and portable lock with
a shackle which locks into its case.
Source: Lock Industry Standards and Training
(LIST) Council
Padlock Eye(s)
(n.) A fixture typically of flat material
or material bent at a 90 degree angle,
with a hole to receive the shackle of
a padlock. Usually used in pairs.
Source: Lock Industry Standards and Training
(LIST) Council
Page Master Key
(n.) The three-pin master key for all
combinations listed on a page in the
standard progression format.
Source: Lock Industry Standards and Training
(LIST) Council
Panic Button
(n.) Any switching device in an alarm
system designed to be activated by a
person in a panic situation. It creates
an immediate alarm condition.
Source: Lock Industry Standards and Training
(LIST) Council
Paracentric
(adj.) 1. Of or pertaining to a keyway
with one or more wards on each side projecting
beyond the vertical center line of the
keyway to hinder picking.
(adj.) 2. Of or pertaining to a key blank
made to enter such a keyway.
Source: Lock Industry Standards and Training
(LIST) Council
Parallel Arm
(n.) A type of door closer and/or closer
mounting which leaves the arm generally
parallel to the door face when closed.
Source: Lock Industry Standards and Training
(LIST) Council
Parity
(n.) The property of being either even
or odd, as the depth number of a bitting
in a combination, or the possible progressives
in a given position of a two step progression.
Source: Lock Industry Standards and Training
(LIST) Council
Parity Pattern
(n.) The collective description of the
parities of a group of bitting positions
in a two step progression, typically
expressed in an even/odd sequence, e.g.
EOOEEO.
Source: Lock Industry Standards and Training
(LIST) Council
Passage Set
(n.) A latchset.
Source: Lock Industry Standards and Training
(LIST) Council
Passe-Partout
(n.) 1. Something, such as a master key,
that permits one to pass or go at will.
(n.) 2. Key that secures entrance everywhere.
(n.) A specific keyway which is sold
without restriction by a lock maker,
but which retains patent protection against
non-original key blank makers.
Source: Lock Industry Standards and Training
(LIST) Council
Pattern Key
(n.) 1. An original key kept on file
to use in a key duplicating machine when
additional keys are required.
(n.) 2. Any key which is used in a key
duplicating machine to create a duplicate
key.
Source: Lock Industry Standards and Training
(LIST) Council
Pawl
(n.) The cam of certain automotive cylinders.
Source: Lock Industry Standards and Training
(LIST) Council
Peanut Cylinder
(n.) A mortise cylinder of 3/4” diameter.
Source: Lock Industry Standards and Training
(LIST) Council
Peel
(v.) To destructively attack a safe by
removing or partially removing the sheet
metal of the door front or the outer
surface of one of the other sides.
Source: Lock Industry Standards and Training
(LIST) Council
Peep Hole
(n.) A small lens or opening which allows
a limited view through a door.
Source: Lock Industry Standards and Training
(LIST) Council
Perforated Tumbler
(n.) A combination wheel with multiple
holes within its diameter for mounting
the fly.
Source: Lock Industry Standards and Training
(LIST) Council
Personal Identification Number
(n.) A series of numbers and/or letters
associated with a particular individual
as a means of identification.
Source: Lock Industry Standards and Training
(LIST) Council
Photo-Electric Detection Device
(n.) A detection device actuated by abrupt
changes in light.
Source: Lock Industry Standards and Training
(LIST) Council
Pick
(n.) 1. A tool or instrument, other than
the specifically designed key, made for
the purpose of manipulating tumblers
in a lock or cylinder into the locked
or unlocked position through the keyway,
without obvious damage.
(v.) 2. To manipulate tumblers in a keyed
lock mechanism through the keyway, without
obvious damage, by means other than the
specifically designed key.
Source: Lock Industry Standards and Training
(LIST) Council
Pick Gun
(n.) A machine designed to impact all
of the bottom pins of a pin tumbler lock
at exactly the same time and thereby
bounce the top pins beyond the shear
line.
Source: Lock Industry Standards and Training
(LIST) Council
Pick Key
(n.) A type of manipulation key, cut
or modified to operate a lock or cylinder.
Source: Lock Industry Standards and Training
(LIST) Council
Pillar Lock
(n.) 1. A lock mounted in a vertical
support member, typically of a vehicle
or furniture.
(obsolete) 2. A lock mounted on a vehicle
door.
Source: Lock Industry Standards and Training
(LIST) Council
Pin
(v.) To install pin tumblers into a cylinder
and/or cylinder plug.
Source: Lock Industry Standards and Training
(LIST) Council
(n.) A type of padlock that requires
pushing the key inward to disengage the
shackle after insertion of the key creates
a shear line.
Source: Lock Industry Standards and Training
(LIST) Council
Pin Tumbler
(n.) Usually a cylindrical shaped tumbler.
Three types are normally used: bottom
pin, master pin and top pin.
Source: Lock Industry Standards and Training
(LIST) Council
Pin Tweezers
(n. pl.) A tool used in handling tumblers
and springs.
Source: Lock Industry Standards and Training
(LIST) Council
Pinning Block
(n.) A holding fixture which assists
in the loading of tumblers into a cylinder
or cylinder plug.
Source: Lock Industry Standards and Training
(LIST) Council
Pinning Chart
(n.) A numerical diagram which indicates
the sizes and order of installation of
the various pins into a cylinder. The
sizes are usually indicated by a manufacturer's
reference number which equals the quantity
of increments a tumbler represents.
Source: Lock Industry Standards and Training
(LIST) Council
Pippin File
(n.) A file with a cross section that
resembles a pip, or apple seed.
Source: Lock Industry Standards and Training
(LIST) Council
PIR
(abb.) Passive Infra-Red
Source: Lock Industry Standards and Training
(LIST) Council
Pitcher Handle
(n.) Lock trim which serves as a pull
and is generally perpendicular to the
door at its top mount, then bends and
tapers to its bottom mount.
Source: Lock Industry Standards and Training
(LIST) Council
Pivot
(n.) A hinge with a fixed pin and knuckle,
forming a single joint.
Source: Lock Industry Standards and Training
(LIST) Council
Plasma Cutter
(n.) Tool that uses electricity and air
pressure to cut various metals.
Source: Lock Industry Standards and Training
(LIST) Council
Plug
(n.) The part of a cylinder which contains
the keyway, with tumbler chambers usually
corresponding to those in the cylinder
shell.
Source: Lock Industry Standards and Training
(LIST) Council
Plug Follower
(n.) A tool used to allow removal of
the cylinder plug while retaining the
top pins, springs, and/or other components
within the shell.
Source: Lock Industry Standards and Training
(LIST) Council
Plug Holder
(n.) A holding fixture which assists
in the loading of tumblers into a cylinder
plug.
Source: Lock Industry Standards and Training
(LIST) Council
Plug Retainer
(n.) The cylinder component which secures
the plug in the shell.
Source: Lock Industry Standards and Training
(LIST) Council
Plug Spinner
(n.) A tool which is designed to rotate
a picked cylinder plug so quickly in
the desired direction that it cannot
lock during its rotation.
Source: Lock Industry Standards and Training
(LIST) Council
Plunger Lock
(n.) Any of various spring loaded locks
or cylinders which move in or out to
accomplish a locking function.
Source: Lock Industry Standards and Training
(LIST) Council
Pocket Door
(n.) A door which opens by sliding into
a hollow wall.
Source: Lock Industry Standards and Training
(LIST) Council
Pocket Strike
(n.) An electric strike which does not
require a face cut in the door jam, yet
allows operation of the boltwork of the
door lock, often by manipulating the
locking and deadlatching portions via
end pressure.
Source: Lock Industry Standards and Training
(LIST) Council
Poke Hole
(n.) A hole designed to allow tools to
poke into or through it, generally for
accessing a retainer.
Source: Lock Industry Standards and Training
(LIST) Council
Pop Out Lock
(n.) A plunger lock usually used on vending
machines to prevent operation of a T
handle.
Source: Lock Industry Standards and Training
(LIST) Council
Positional Master Keying
(n.) A method of master keying typical
of certain binary type disc tumbler key-in-knob
looks and of magnetic and dimple key
cylinders. Of all possible tumbler positions
within a cylinder, only a limited number
contain active tumblers. The locations
of these active tumblers are rotated
among all possible positions to generate
key changes. Higher level keys must have
more cuts or magnets than lower level
keys.
Source: Lock Industry Standards and Training
(LIST) Council
Positive Latching
(n.) The condition of a door being secured
such that manual operation of the latch
or bolt mechanism must occur before it
may be opened.
Source: Lock Industry Standards and Training
(LIST) Council
Positive Locking
(n.) The condition brought about when
a key cut which is too high forces its
tumbler into the locking position. This
type of locking does not rely on gravity
or spring pressure.
Source: Lock Industry Standards and Training
(LIST) Council
Post (Of A Key)
(n.) The portion of a bit key between
the tip and the shoulder, to which the
bit(s) is attached.
Source: Lock Industry Standards and Training
(LIST) Council
Post (Of A Lock)
(n.) 1. A part of a lock that serves
as a guide for a barrel key and prevents
entry of a non-barrel key.
(n.) 2. The center bearing surface of
a mechanical combination lock on which
the wheels rotate.
Source: Lock Industry Standards and Training
(LIST) Council
Power Locks
(n.) Electrically or electro-pneumatically
operated locks.
Source: Lock Industry Standards and Training
(LIST) Council
Power Pack
(n.) A battery with a special configuration
designed for use in a specific product.
Source: Lock Industry Standards and Training
(LIST) Council
Practical Key Changes
(n. pl.) The total number of usable different
combinations available for a specific
cylinder or lock mechanism.
Source: Lock Industry Standards and Training
(LIST) Council
Pre Assembled Lockset
(n.) A lock designed to be installed
into a cutout in the edge of a door.
The lock body and most or all of its
trim need no further assembly other than
securing it to the door.
Source: Lock Industry Standards and Training
(LIST) Council
Prep
(n.) 1. The location and dimensions of
the cut out(s) and reinforcing in a door
or frame required to accept a piece of
hardware.
(v.) 2. To prepare a door or frame for
installation of a lock or other hardware.
Source: Lock Industry Standards and Training
(LIST) Council
Prep Key
(n.) A type of guard key for a safe deposit
box lock with only one keyway. It must
be turned once and withdrawn before the
renter's key will unlock the unit.
Source: Lock Industry Standards and Training
(LIST) Council
Primary Key
(n.) A key, which operates the ignition,
lock on a vehicle. It may or may not
also operate some or all the other locks
on the vehicle.
Source: Lock Industry Standards and Training
(LIST) Council
Privacy Key
(n.) A key which operates an SKD cylinder.
Source: Lock Industry Standards and Training
(LIST) Council
(n.) A cylinder with a usually uniform
cross section, which slides into place
and usually is held by a mounting screw.
It is typically used in mortise locks
of non-U.S. manufacture.
Source: Lock Industry Standards and Training
(LIST) Council
Profile Pin
(n.) A stationary pin placed in the plug
of a pin tumbler lock to act as a ward
to produce a keyway.
Source: Lock Industry Standards and Training
(LIST) Council
Progress
(v.) To select possible key bittings,
usually in numerical order, from the
key bitting array.
Source: Lock Industry Standards and Training
(LIST) Council
Progression
(n.) 1. A logical sequence of selecting
possible key bittings, usually in numerical
order from the key bitting array.
(n.) 2. A system of generating keys with
different cut combinations for unknown
positions, when a partial bitting is
known.
Source: Lock Industry Standards and Training
(LIST) Council
Progression Chart
(n.) A list of combinations to consider
when fitting keys to a lock with only
a partial bitting known, typically arranged
to minimize the number of key blanks
needed.
Source: Lock Industry Standards and Training
(LIST) Council
Progression Column
(n.) A listing of the key bitting possibilities
available in one bitting position as
displayed in a column of the key bitting
array.
Source: Lock Industry Standards and Training
(LIST) Council
Progression List
(n.) A bitting list of change keys and
master keys arranged in sequence of progression.
Source: Lock Industry Standards and Training
(LIST) Council
Progressive
(n.) Any bitting position which is progressed
rather than held constant.
Source: Lock Industry Standards and Training
(LIST) Council
Proprietary
(adj.) Of or pertaining to a keyway and
key section assigned exclusively to one
end user by the lock manufacturer. It
may also be protected by law from duplication.
Source: Lock Industry Standards and Training
(LIST) Council
Protected Key
(n.) A physical key that affords legal
remedies against duplication.
Source: Lock Industry Standards and Training
(LIST) Council
PRP
(abb.) “Proficiency Registration
Program”; a locksmith certification
program administered by ALOA.
Source: Lock Industry Standards and Training
(LIST) Council
Public Way
(n.) Any parcel of land essentially open
to the outside air and permanently appropriated
to the public for public use and having
a clear width and height of not less
than 10 ft.
Source: Lock Industry Standards and Training
(LIST) Council
Pull Handle
(n.) Trim for gripping to apply pulling
force to a door.
Source: Lock Industry Standards and Training
(LIST) Council
Pull Plate
(n.) A generally flat and commonly rectangular
trim with an attached handle for pulling
open a door.
Source: Lock Industry Standards and Training
(LIST) Council
Pullman Keeper
(n.) A type of keeper which is shaped
to operate with the radiused contour
of a Pullman latch.
Source: Lock Industry Standards and Training
(LIST) Council
Pullman Latch
(n.) A type of latch which pivots like
a hinge and whose locking side is radiused.
Source: Lock Industry Standards and Training
(LIST) Council
Pulse Dialer
(n.) A telephone communication device,
normally activated by an alarm, that
uses electrical pulses to dial a predetermined
number.
Source: Lock Industry Standards and Training
(LIST) Council
Punch Proof Spindle
(n.) A spindle that is shouldered or
tapered inward to prevent it from being
driven into or through the mechanism.
Source: Lock Industry Standards and Training
(LIST) Council
Push Button Lock
(n.) A self contained lock with controls
that must be pressed in a specific pattern
or sequence to open the lock.
Source: Lock Industry Standards and Training
(LIST) Council
Push Key Padlock
(n.) A padlock whose shackle is released
by full insertion of the key into the
lock.
Source: Lock Industry Standards and Training
(LIST) Council
Push Plate
(n.) A generally flat and commonly rectangular
trim mounted for hand contact to push
open a door.
Source: Lock Industry Standards and Training
(LIST) Council
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