The component production specifications are routinely checked and are often recorded. In terms of production, an array of metrology equipment is on standby to measure diameters, lengths, surface finishes, and more. When producing a threaded component in particular, there are several methods and tools available to verify thread dimensions. For example, acquiring a thread’s effective pitch diameter is achieved by using a thread micrometer, which is fitted with a vee and conical anvil. However, thread wire sets and a standard flat face micrometer may also be used.
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Bulkhead seating refers to the seats immediately present behind the walls or bulkheads of a plane that serve to divide different classes. For example, a bulkhead can serve as a partition separating business class seating from coach seating. On the other hand, it is important to note that seats situated in front of bulkheads are not called bulkhead seating, but are considered the “last row” of that particular section of the airplane.
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