Master Lock No 141 - Revision history

Datagram at 16:19, 21 August 2025

2025-08-21T16:19:03Z

← Older revision		Revision as of 16:19, 21 August 2025
Line 23:		Line 23:
	== 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. 141 can only be opened by rotating the plug clockwise.		The No. 141 can only be opened by rotating the plug clockwise.

Mgsecure: /* Master Lock No. 141 */ link in specs

2022-12-26T13:57:30Z

Master Lock No. 141: link in specs

← Older revision		Revision as of 13:57, 26 December 2022
Line 12:		Line 12:
	\| related = [[Master Lock No 140]]<br>[[Master Lock No 142]]		\| related = [[Master Lock No 140]]<br>[[Master Lock No 142]]
	\| spec_on = true		\| spec_on = true
	\| spec_comptype = Pin-tumbler		\| spec_comptype = [[Pin_tumbler \|Pin-tumbler]]
	\| spec_comp = 4		\| spec_comp = 4
	}}		}}

Mgsecure: /* Master Lock No. 141 */ add gallery

2022-11-23T16:36:19Z

Master Lock No. 141: add gallery

← Older revision		Revision as of 16:36, 23 November 2022
Line 15:		Line 15:
	\| spec_comp = 4		\| spec_comp = 4
	}}		}}


	The '''No. 141''' is a [[Pin_tumbler\|pin-tumbler]] [[Padlock\|padlock]] made by [[Master Lock]]. The No. 141 is a 40mm wide solid body padlock with a black 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. 141''' is a [[Pin_tumbler\|pin-tumbler]] [[Padlock\|padlock]] made by [[Master Lock]]. The No. 141 is a 40mm wide solid body padlock with a black 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.
Line 31:		Line 30:

	The No. 141 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.		The No. 141 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.

			== Gallery ==
			<gallery align="center">
			File:Master-141-front.jpg \| Master Lock 141
			File:Master Lock 141 keyway - FXE47771.jpg \| Master Lock 141 keyway
			</gallery>

	== Vulnerabilities ==		== Vulnerabilities ==

Mgsecure: /* Master Lock No. 141 */ added missing lock image

2022-10-21T15:58:10Z

Master Lock No. 141: added missing lock image

← Older revision		Revision as of 15:58, 21 October 2022
Line 3:		Line 3:
	{{Lock model		{{Lock model
	\| name = Master Lock No. 141		\| name = Master Lock No. 141
	\| Img = File:~~Master141~~.jpg		\| Img = File:Master-141-front.jpg
	\| Img_size = 150px		\| Img_size = 150px
	\| maker = [[Master Lock]]		\| maker = [[Master Lock]]

Mgsecure: /* Disassembly instructions */ fixed typo

2022-10-21T14:32:25Z

Disassembly instructions: fixed typo

← Older revision		Revision as of 14:32, 21 October 2022
Line 30:		Line 30:
	== Disassembly instructions ==		== Disassembly instructions ==

	The No. ~~140~~ 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.		The No. 141 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 ==		== Vulnerabilities ==

Sandplum: clean-up

2021-04-07T01:30:44Z

clean-up

← Older revision		Revision as of 01:30, 7 April 2021
Line 1:		Line 1:
	= Master Lock No. 141 =		= Master Lock No. 141 =

	~~<!--~~
	{{Lock model		{{Lock model
	\| name = Master Lock No. 141		\| name = Master Lock No. 141
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 142]]		\| related = [[Master Lock No 140]]<br>[[Master Lock No 142]]
			\| spec_on = true
			\| spec_comptype = Pin-tumbler
			\| spec_comp = 4
	}}		}}
	~~-->~~

	The '''No. 141''' is a [[pin-tumbler]] [[padlock]] made by [[Master Lock]]. The No. 141 is a solid body padlock with a black plastic cover with the word "Master" inlaid in silver. The [[plug]] is made of brass and does not contain any security pins.
			The '''No. 141''' is a [[Pin_tumbler\|pin-tumbler]] [[Padlock\|padlock]] made by [[Master Lock]]. The No. 141 is a 40mm wide solid body padlock with a black 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__
Line 22:		Line 24:
	== 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. 141 can only be opened by rotating the [[plug]] clockwise.		The No. 141 can only be opened by rotating the plug clockwise.

	== Disassembly instructions ==		== Disassembly instructions ==
Line 32:		Line 34:
	== Vulnerabilities ==		== Vulnerabilities ==

	The 141's low pin-tumbler count, at 4 pins, 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 141's low pin-tumbler count, at 4 pins, 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.		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.

	The No. 141 may be vulnerable to one or more of the following:		The No. 141 may be vulnerable to one or more of the following:
Line 46:		Line 48:
	== 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. 141 has no security pins, corrected.

2019-09-16T15:34:02Z

Inconsistency - lead paragraph claims no security pins, Vulnerabilities section claims security pins. 141 has no security pins, corrected.

← Older revision		Revision as of 15:34, 16 September 2019
Line 32:		Line 32:
	== Vulnerabilities ==		== Vulnerabilities ==

	The 141'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 141's low pin-tumbler count, at 4 pins, 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.		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.

Rlerner: Create Page

2019-07-30T04:36:00Z

Create Page

New page

= Master Lock No. 141 =



The '''No. 141''' is a [[pin-tumbler]] [[padlock]] made by [[Master Lock]]. The No. 141 is a solid body padlock with a black 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. 141 can only be opened by rotating the [[plug]] clockwise.

== Disassembly instructions ==

The No. 140 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 141'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.

The No. 141 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]]