Fitment

Bottles also usually incorporate a fitment, which provides a pouring spout.

Source: wiktionary

Poor Mole! The Life Adventurous was so new a thing to him, and so thrilling; and this fresh aspect of it was so tempting; and he had fallen in love at first sight with the canary-coloured cart and all its little fitments.

Source: wiktionary

There might have been no planking beneath the mould, for all that our feet could feel. It gave under our tread with a spongy, puddingy feel. It covered the deck furniture of the old ship, so that the shape of each article and fitment was often no more than suggested through it.

Source: wiktionary

A good sanitary fitment should be of the simplest possible design, constructed so as to be self-cleansing, and, as far as possible, free from any moving working parts.

Source: wiktionary