Master Lock No 570

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Master Lock No. 570

Master Lock No. 570
Master 570.jpg
Name Master Lock No. 570
Manufacturer Master Lock
Lock Type Padlock, Cylinder
Lock Design Pin-tumbler
# of Components 5
Component Type Pin-tumbler

The No. 570 is a pin-tumbler padlock made by Master Lock. The No. 570 uses an aluminum padlock body with an internal key-in-knob-style cylinder. The inner cylinder uses five pin stacks and may use security pins.

The No. 570 uses a dual ball-bearing locking mechanism.

Principles of operation

The No. 570 cylinder is a pin-tumbler lock with five pin stacks and security pins. The cylinder uses a mirrored M1 key profile. The standard No. 570 can be opened in one direction. The No. 570 is a key retaining padlock. The shackle and plug are both unsprung and will require manual rotation while picking and returning the key to the locked state.

Disassembly instructions

The No. 570 cannot be disassembled non-destructively.


The No. 570 is vulnerable to a wide range of attacks. The No. 570 may be vulnerable to one or more of the following:


See also