also: スペーサ
noun
spacer
A piece used to create or maintain a gap between objects, common in engineering, construction, and manufacturing.
このスペーサーは、パイプと壁の間に隙間を作るために使います。
This spacer is used to create a gap between the pipe and the wall.
Standard katakana spelling with long vowel marker.
Variant without long vowel marker; also common in technical contexts.
Borrowed from English 'spacer'.