special-purpose item

special-purpose item

[′spesh·əl ¦pər·pəs ′īd·əm]
(engineering)
In supply usage, any item designed to fill a special requirement, and having a limited application; for example, a wrench or other tool designed to be used for one particular model of a piece of machinery.
References in periodicals archive ?
Since the early 1960s, successive governments have introduced 11 amnesty schemes, excluding special-purpose items like the regularisation of non-customs paid vehicles.
After selecting your core cookware business, add items such as cast iron, copper, or other specialty cookware items such as asparagus steamers, or even more special-purpose items like the tagine.
In addition, archers need fluorescent trail marking tape, spare bowstrings, extra broadheads, spare bow sight pins, treestand steps, odor masking scent, deer calls, wind direction powder, rattling antlers, and a myriad of other special-purpose items. Such archery aids add up to considerable bulk and several pounds of weight -- which makes some sort of pack a must.