Combination lock with rotary latch

A combination lock, comprising:

• a rotary latch configured for rotation between a locked position and an unlocked position, the rotary latch being rotatably secured to a housing of the combination lock, wherein the rotary latch rotates in a first plane, the rotary latch has an opening at one end and a shoulder portion at an opposite end each being aligned with each other and in the first plane;
• and
• a bolt configured for movement between a first position and a second position along a second plane in response to operation of the combination lock, the second plane being oriented at a different location than the first plane, the bolt further comprising a portion configured to engage the shoulder portion of the rotary latch when the rotary latch is in the locked position and the bolt is in the first position such that rotation of the rotary latch from the locked position to the unlocked position is prevented by the portion of the bolt engaging the shoulder portion of the rotary latch and wherein the bolt is movably mounted to the housing, wherein the housing further comprises an extended housing portion extending from the housing wherein the housing and the extended housing each define an interior area, the extended housing portion surrounding and enclosing a shaft the rotary latch rotates on.