close nipple

close nipple

[′klōs ′nip·əl]
(engineering)
A short length of pipe that is completely threaded.

close nipple

close nipple
A nipple having no shoulder (i.e., no unthreaded portion) and having the shortest possible length permitted by standard practice.
References in periodicals archive ?
It consists of a tee, a close nipple and three other nipples; also, a globe valve with a drain plug, a union, a 90 degree elbow, and another length of pipe and a pipe cap.