Master Lock No 2240

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Master Lock No. 2240

Master Lock No. 2240
Name Master Lock No. 2240
Manufacturer Master Lock
Lock Type Padlock, Cylinder
Lock Design Pin-tumbler
# of Components 5
Component Type Pin-tumbler

The No. 2240 is a pin-tumbler padlock made by Master Lock. The No. 2240 is a solid body brass padlock with an inner cylinder that uses five pin stacks and contains security pins.

Principles of operation

See also Pin-tumbler (Principles of operation)

The No. 2240 cylinder is a pin-tumbler lock with five pin stacks and spooled security pins in various chambers. The No. 2240 can only be opened by rotating the plug clockwise.

Disassembly instructions

The No. 2240 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. 2240 may be vulnerable to one or more of the following:

See also