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Master Lock Manuals & User Guides

Master Lock is a globally recognized manufacturer of padlocks, portable security solutions, and electronic combination locks for personal and commercial use.

Tip: include the full model number printed on your Master Lock label for the best match.

About Master Lock manuals on Manuals.plus

About Master Lock

Master Lock is recognized globally as the authentic, enduring name in locks, combination padlocks, and security products. From traditional combination and key padlocks to innovative Bluetooth and electronic smart locks, Master Lock provides reliable security and peace of mind.

Their product lineup includes TSA-accepted luggage locks, heavy-duty commercial padlocks, portable lock boxes, and more. With the introduction of the Master Lock Vault apps, users can conveniently manage electronic locks straight from a smartphone.

Master Lock manuals

Latest manuals from manuals+ curated for this brand.

Master Lock Instruction Manual

Master Lock Instruction Manual

March 29, 2021
Transportation Security Administration (TSA) baggage screeners are trained to recognize the Travel Sentry® red diamond logo on TSA – accepted locks. They have access to a secured set of codes…
Master Lock Security Safe Owner's Manual

Master Lock Security Safe Owner's Manual

Owner's Manual
User manual for Master Lock security safes (models X031ML, X041ML, X055ML, X075ML, X125ML), covering key lock and digital combination models, installation, operation, programming, troubleshooting, and bolt-down instructions.
‎1500iD

‎1500iD

application/pdf
‎1500iD, ‎Master Lock,‎Master Lock,Master,Lock,Directional,Combination,Lock,Set,Your,Own,Directional,Lock,Combination,Lock,for,Gym,and,School,Lockers,1500iD,Colors,May,Vary,B002TSN4SQ,
‎1500iD

‎1500iD

application/pdf
‎1500iD, ‎Master Lock,‎Master Lock,Master,Lock,Directional,Combination,Lock,Set,Your,Own,Directional,Lock,Combination,Lock,for,Gym,and,School,Lockers,1500iD,Colors,May,Vary,B002TSN4SQ,
‎1500iD

‎1500iD

application/pdf
‎1500iD, ‎Master Lock,‎Master Lock,Master,Lock,Directional,Combination,Lock,Set,Your,Own,Directional,Lock,Combination,Lock,for,Gym,and,School,Lockers,1500iD,Colors,May,Vary,B002TSN4SQ,
‎4401DLHMX

‎4401DLHMX

application/pdf
‎4401DLHMX, ‎Master Lock,‎Master Lock,Master,Lock,Bluetooth,Outdoor,Padlock,with,Easy,Backup,Keypad,Entry,–,4401DLH,B01A65T7OI,
‎4401DLHMX

‎4401DLHMX

application/pdf
‎4401DLHMX, ‎Master Lock,‎Master Lock,Master,Lock,Bluetooth,Outdoor,Padlock,with,Easy,Backup,Keypad,Entry,–,4401DLH,B01A65T7OI,
‎5900D

‎5900D

application/pdf
‎5900D, ‎Master Lock,‎Master Lock,Master,Lock,Portable,Small,Lock,Box,Set,Your,Own,Combination,Lock,Portable,Safe,Personal,Travel,Safe,5900D,Gunmetal,Grey,Gunmetal,Grey,9.8,x,5.5,x,2.6,B0F8155M1K,B005K6JQXQ,B0052OU5JK
‎5441ECMX

‎5441ECMX

application/pdf
‎5441ECMX, ‎Master Lock,‎Master Lock,Master,Lock,Digital,Lock,Box,for,Keys,with,Code,Electronic,Wall,Mount,Key,Safe,with,Bluetooth,Connection,to,iOS/Android,App,and,Sharable,Keypad,Codes,3-1/4,Inches,Wide,‎5441EC,Wall,Mount,Box,B071HLFG35,B0BLRCPHPN,B071VGZ283,B071NQ9G3Q
‎5441ECMX

‎5441ECMX

application/pdf
‎5441ECMX, ‎Master Lock,‎Master Lock,Master,Lock,Digital,Lock,Box,for,Keys,with,Code,Electronic,Wall,Mount,Key,Safe,with,Bluetooth,Connection,to,iOS/Android,App,and,Sharable,Keypad,Codes,3-1/4,Inches,Wide,‎5441EC,Wall,Mount,Box,B071HLFG35,B0BLRCPHPN,B071VGZ283,B071NQ9G3Q
‎630D

‎630D

application/pdf
‎630D, ‎Master Lock,‎Master Lock,Master,Lock,Set,Your,Own,Combination,Aluminum,Lock,Small,Lock,for,Backpacks,Cabinets,or,Zippers,with,3-Digit,Code,1-3/16,Inches,Wide,630D,1,Pack,B07VFQRR1L,B00004SQLT,B0DK7X9NDH
‎5400D

‎5400D

application/pdf
‎5400D, ‎Master Lock,‎Master Lock,Master,Lock,Key,Lock,Box,Outdoor,Lock,Box,for,House,Keys,Key,Safe,with,Combination,Lock,5,Key,Capacity,5400EC,1,Pack,1,Pack,Black,B0D3R5C3CG,B0BHZRFXX3,B0BJ1141P1,B0BWVR6RZW,B0002YP1VC,B0BHZYXJKC,B0CKJ9VSWF,B0BHZYWHRW,B0CKJ7GJSX,B0BWVRGMND
‎5422EC

‎5422EC

application/pdf
‎5422EC, ‎Master Lock,‎Master Lock,Master,Lock,Black,Outdoor,Key,Lock,Box,with,Push,Buttons,to,Hide,a,Key,Easily,Set,Share,and,Change,Combination,for,Tenants,Guests,Clients,Move,Between,Listings,5422E,3-1/2,In.,H.,x,2-1/4,In.,W.,x,1,In.,D.,1,Pack,B0BSRMXY15,B00BOSMLGS
‎5441EC, 5490D

‎5441EC, 5490D

application/pdf
‎5441EC, 5490D, ‎Master Lock,‎Master Lock,Master,Lock,Bluetooth,Wall,Mount,Lock,Box,Bundle,with,Retractable,Key,Tether,Accessory,B071HLFG35,B0BLRCPHPN,B071VGZ283,B071NQ9G3Q

Master Lock manuals from online retailers

Master Lock 647D Black Combination Padlock User Manual

Master Lock 647D Black Combination Padlock User Manual

647D • April 21, 2026
Comprehensive user manual for the Master Lock 647D Black Combination Padlock, including setup, operation, features, specifications, and warranty information for this durable 3-digit customizable lock.

Master Lock video guides

Watch setup, installation, and troubleshooting videos for this brand.

Master Lock support FAQ

Common questions about manuals, registration, and support for this brand.

  • How do I reset my Master Lock TSA-accepted combination lock?

    If your lock is new, it is factory preset to 0-0-0. Align the dials to the correct combination, pull the shackle or cable tip, press and hold the reset button (or use a reset tool depending on the model), set your new combination, and then release the button.

  • Where can I find the instruction manual for my Master Lock product?

    You can find user manuals, resetting instructions, and guides for Master Lock products directly on the Master Lock support page or within our manual repository.

  • What is the Master Lock Vault Enterprise app?

    Master Lock Vault Enterprise is a platform that allows you to manage Bluetooth and electronic locks from your smartphone, enabling you to open locks without combinations or physical keys.

  • What kind of warranty does Master Lock provide?

    Master Lock offers different warranties depending on the specific product type, including Limited Lifetime Warranties on many personal and commercial padlocks. Please check your product packaging or the official Master Lock warranty page.