An adapter for joining pipes of different size.
A threaded bushing: a fastener element that is inserted into an object, usually to add a threaded hole in a softer or thin material.
A lining for an opening through which a conductor passes, providing insulation and mechanical protection for the conductor.
A type of bearing, a cylindrical lining designed to reduce friction and wear inside a hole, often used as a casing for a shaft, pin or hinge.
An elastic bearing used as a type of vibration isolator, commonly made of rubber. An interface between two parts, damping the movement and the energy transmitted.
An apparatus by which a stream of water is forced into a steam boiler.
An object that realizes a dependency injection.
One who injects (himself or herself with) psychoactive drugs.
Any of various devices that are used to inject something.