NR

Symbol used to indicate non-rotating rope.

NEEDLE

A cantilevered structural member that supports a scaffold or load.

NIP

The point at which a rope or sling is gripped by a hitch.

NON-ROTATING ROPE

FSWR in which adjacent layers of strands are layed in opposite directions, ie alternatively right hand and left hand, to prevent the rope from spinning under load. Commonly used as a crane hoist rope.

NON-SLEWING MOBILE CRANE

A mobile crane which has a boom or jib that cannot be slewed. It includes an articulated type mobile crane and a locomotive crane.