Master Lock No 142 - Revision history

Datagram at 16:19, 21 August 2025

2025-08-21T16:19:12Z

← Older revision		Revision as of 16:19, 21 August 2025
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	== Principles of operation ==		== Principles of operation ==

	:''See also [[~~Pin_tumbler~~#~~Principles_of_Operation~~\|Pin-tumbler (Principles of Operation)]]''		:''See also [[Pin tumbler#Principles of operation\|Pin-tumbler (Principles of Operation)]]''

	The No. 142 can only be opened by rotating the plug clockwise.		The No. 142 can only be opened by rotating the plug clockwise.

Mgsecure: photos, TOC

2023-01-06T13:26:15Z

photos, TOC

← Older revision		Revision as of 13:26, 6 January 2023
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	= ~~Master Lock No. 142 =~~		<span style="font-size: 188%;">{{PAGENAME}}</span>
			----
	{{Lock model		{{Lock model
	\| name = Master Lock No. 142		\| name = Master Lock No. 142
	\| Img = File:~~Master142~~.jpg		\| Img = File:Master Lock 142 - FXE48039.jpg
	\| Img_size = 150px		\| Img_size = 150px
	\| maker = [[Master Lock]]		\| maker = [[Master Lock]]
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	\| spec_comp = 4		\| spec_comp = 4
	}}		}}


	The '''No. 142''' is a [[Pin_tumbler\|pin-tumbler]] [[Padlock\|padlock]] made by [[Master Lock]]. The No. 142 is a 40mm wide solid body padlock with a blue plastic cover with the word "Master" inlaid in silver. The [[Plug\|plug]] is made of brass and does not contain any security pins. The [[bolt\|shackle]] has a diameter of 6mm, and a length of either 22mm or 38mm.		The '''No. 142''' is a [[Pin_tumbler\|pin-tumbler]] [[Padlock\|padlock]] made by [[Master Lock]]. The No. 142 is a 40mm wide solid body padlock with a blue plastic cover with the word "Master" inlaid in silver. The [[Plug\|plug]] is made of brass and does not contain any security pins. The [[bolt\|shackle]] has a diameter of 6mm, and a length of either 22mm or 38mm.

	__TOC__		__TOC__
	~~<br clear=all>~~

	== Principles of operation ==		== Principles of operation ==
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	* [[Bypass]]		* [[Bypass]]
	* [[Destructive entry]]		* [[Destructive entry]]

			== Gallery ==
			<gallery align="center">
			File:Master Lock 142 - FXE48039.jpg \| Front view
			File:Master Lock 142 keyway - FXE48040.jpg \| Keyway
			File:Master Lock 142 & key - FXE48043.jpg \| Padlock & key
			</gallery>

	== See also ==		== See also ==

Mgsecure: /* Master Lock No. 142 */ link in specs

2022-12-26T13:57:49Z

Master Lock No. 142: link in specs

← Older revision		Revision as of 13:57, 26 December 2022
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	\| related = [[Master Lock No 140]]<br> [[Master Lock No 141]]		\| related = [[Master Lock No 140]]<br> [[Master Lock No 141]]
	\| spec_on = true		\| spec_on = true
	\| spec_comptype = Pin-tumbler		\| spec_comptype = [[Pin_tumbler \|Pin-tumbler]]
	\| spec_comp = 4		\| spec_comp = 4
	}}		}}

Sandplum: clean-up

2021-04-07T01:10:00Z

clean-up

← Older revision		Revision as of 01:10, 7 April 2021
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	= Master Lock No. 142 =		= Master Lock No. 142 =

	~~<!--~~
	{{Lock model		{{Lock model
	\| name = Master Lock No. 142		\| name = Master Lock No. 142
Line 7:		Line 6:
	\| Img_size = 150px		\| Img_size = 150px
	\| maker = [[Master Lock]]		\| maker = [[Master Lock]]
	\| lock_type = [[Padlock~~]], [[Cylinder~~]]		\| lock_type = [[Padlock]]
	\| lock_design = [[Pin-tumbler]]		\| lock_design = [[Pin_tumbler\|Pin-tumbler]]
	\| years_produced =		\| years_produced =
	\| patent =		\| patent =
	\| related = [[Master Lock No 140]] [[Master Lock No 141]]		\| related = [[Master Lock No 140]]<br> [[Master Lock No 141]]
			\| spec_on = true
			\| spec_comptype = Pin-tumbler
			\| spec_comp = 4
	}}		}}
	~~-->~~

	The '''No. 142''' is a [[pin-tumbler]] [[padlock]] made by [[Master Lock]]. The No. 142 is a solid body padlock with a blue plastic cover with the word "Master" inlaid in silver. The [[plug]] is made of brass and does not contain any security pins.
			The '''No. 142''' is a [[Pin_tumbler\|pin-tumbler]] [[Padlock\|padlock]] made by [[Master Lock]]. The No. 142 is a 40mm wide solid body padlock with a blue plastic cover with the word "Master" inlaid in silver. The [[Plug\|plug]] is made of brass and does not contain any security pins. The [[bolt\|shackle]] has a diameter of 6mm, and a length of either 22mm or 38mm.

	__TOC__		__TOC__
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	== Principles of operation ==		== Principles of operation ==

	:''See also [[~~Pin-tumbler~~#Principles_of_Operation\|Pin-tumbler (Principles of Operation)]]''		:''See also [[Pin_tumbler#Principles_of_Operation\|Pin-tumbler (Principles of Operation)]]''

	The No. 142 can only be opened by rotating the [[plug]] clockwise.		The No. 142 can only be opened by rotating the plug clockwise.

	== Disassembly instructions ==		== Disassembly instructions ==
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	== Vulnerabilities ==		== Vulnerabilities ==

	The 142's low pin-tumbler count and poor manufacturing tolerances allows it to be easily picked by low skill attackers. It is commonly used in [[locksport]] groups ~~and~~ an introductory lock for beginners to learn.		The 142's low pin-tumbler count and poor manufacturing tolerances allows it to be easily picked by low skill attackers. It is commonly used in [[locksport]] groups as an introductory lock for beginners to learn.

	The 14x series is vulnerable to [[overlift]] attacks, where the entire pin stack can be lifted with a [[comb pick]] into the driver's pin chamber and allowing plug rotation. Additionally, the 14x series tends to use zero-lift pins, and once you can identify these pins you can simply avoid them as the pin rests at the shear line. This means less than the total four pins will need to be lifted to enter the lock.		The 14x series is vulnerable to overlift attacks, where the entire pin stack can be lifted with a [[Comb_pick\|comb pick]] into the driver's pin chamber and allowing plug rotation. Additionally, the 14x series tends to use zero-lift pins, and once you can identify these pins you can simply avoid them as the pin rests at the shear line. This means less than the total four pins will need to be lifted to enter the lock.

	The No. 142 may be vulnerable to one or more of the following:		The No. 142 may be vulnerable to one or more of the following:
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	== See also ==		== See also ==

	* [[~~Pin-tumbler~~]]		* [[Master Lock]]
	* [[Padlock]]		* [[Padlock]]
	* [[~~Master Lock~~]]		* [[Pin_tumbler\|Pin-tumbler]]

			[[Category:Lock models]]
			[[Category:Master Lock]]
			[[Category:Padlocks]]
	[[Category:Pin-tumbler locks]]		[[Category:Pin-tumbler locks]]
	~~[[Category:Padlocks]]~~
	~~[[Category:Master Lock\|No 1]]~~
	~~[[Category:Lock models]]~~

Nerixel: Inconsistency - lead paragraph claims no security pins, Vulnerabilities section claims security pins. 142 has no security pins, corrected. Minor model number inconsistency fixed.

2019-09-16T15:35:09Z

Inconsistency - lead paragraph claims no security pins, Vulnerabilities section claims security pins. 142 has no security pins, corrected. Minor model number inconsistency fixed.

← Older revision		Revision as of 15:35, 16 September 2019
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	-->		-->

	The '''No. 142''' is a [[pin-tumbler]] [[padlock]] made by [[Master Lock]]. The No. ~~141~~ is a solid body padlock with a blue plastic cover with the word "Master" inlaid in silver. The [[plug]] is made of brass and does not contain any security pins.		The '''No. 142''' is a [[pin-tumbler]] [[padlock]] made by [[Master Lock]]. The No. 142 is a solid body padlock with a blue plastic cover with the word "Master" inlaid in silver. The [[plug]] is made of brass and does not contain any security pins.

	__TOC__		__TOC__
Line 32:		Line 32:
	== Vulnerabilities ==		== Vulnerabilities ==

	The 142's low pin-tumbler count and poor manufacturing tolerances allows it to be easily picked by low skill attackers ~~despite having spool pins~~. It is commonly used in [[locksport]] groups and an introductory lock for beginners to learn.		The 142's low pin-tumbler count and poor manufacturing tolerances allows it to be easily picked by low skill attackers. It is commonly used in [[locksport]] groups and an introductory lock for beginners to learn.

	The 14x series is vulnerable to [[overlift]] attacks, where the entire pin stack can be lifted with a [[comb pick]] into the driver's pin chamber and allowing plug rotation. Additionally, the 14x series tends to use zero-lift pins, and once you can identify these pins you can simply avoid them as the pin rests at the shear line. This means less than the total four pins will need to be lifted to enter the lock.		The 14x series is vulnerable to [[overlift]] attacks, where the entire pin stack can be lifted with a [[comb pick]] into the driver's pin chamber and allowing plug rotation. Additionally, the 14x series tends to use zero-lift pins, and once you can identify these pins you can simply avoid them as the pin rests at the shear line. This means less than the total four pins will need to be lifted to enter the lock.

Rlerner: Create Page

2019-07-30T04:39:23Z

Create Page

New page

= Master Lock No. 142 =



The '''No. 142''' is a [[pin-tumbler]] [[padlock]] made by [[Master Lock]]. The No. 141 is a solid body padlock with a blue plastic cover with the word "Master" inlaid in silver. The [[plug]] is made of brass and does not contain any security pins.

__TOC__
<br clear=all>

== Principles of operation ==

:''See also [[Pin-tumbler#Principles_of_Operation|Pin-tumbler (Principles of Operation)]]''

The No. 142 can only be opened by rotating the [[plug]] clockwise.

== Disassembly instructions ==

The No. 142 cannot be disassembled non-destructively; to disassemble it the lock must be sawed in half. The lock is nonfunctional once disassembled because the padlock body acts as the cylinder for the lock.

== Vulnerabilities ==

The 142's low pin-tumbler count and poor manufacturing tolerances allows it to be easily picked by low skill attackers despite having spool pins. It is commonly used in [[locksport]] groups and an introductory lock for beginners to learn.

The 14x series is vulnerable to [[overlift]] attacks, where the entire pin stack can be lifted with a [[comb pick]] into the driver's pin chamber and allowing plug rotation. Additionally, the 14x series tends to use zero-lift pins, and once you can identify these pins you can simply avoid them as the pin rests at the shear line. This means less than the total four pins will need to be lifted to enter the lock.

The No. 142 may be vulnerable to one or more of the following:

* [[Lockpicking]]
* [[Key bumping]]
* [[Impressioning]]
* [[Bypass]]
* [[Destructive entry]]

== See also ==

* [[Pin-tumbler]]
* [[Padlock]]
* [[Master Lock]]

[[Category:Pin-tumbler locks]]
[[Category:Padlocks]]
[[Category:Master Lock|No 1]]
[[Category:Lock models]]