Parts under 611790 are knitted or crocheted components that are recognizable as intended for incorporation into a garment or accessory but are not yet complete articles — for example, a knitted sleeve panel or collar piece. A fully assembled garment, even if it requires minor finishing, classifies as a finished article under the appropriate garment heading rather than as a part.

Knitted balaclavas and similar face coverings that also cover the head are generally classified under the headwear chapter rather than here, because their primary function is head covering. A knit face mask or gaiter that does not cover the head may fall under 6117 as a clothing accessory. The article's design and primary coverage area guide the classification.