GASKET

To provide a gasket which is space-saving, in which collapse of two members to be sealed does not easily occur at the time of fastening, and which has a small compression reaction force.SOLUTION: A gasket 5 is interposed in a compressed state between a first member 2 and a second member 3 integrated with each other. An annular body portion 6 is included, which is clipped between a planar first surface 21a of the first member 2 and a planar second surface 31a of the second member 3. In the body portion 6, dimensions d1 in a width direction b orthogonal to a circumferential direction a is smaller than dimensions d2 in a height direction. On side surfaces 6c and 6d of the body portion 6, collapse preventive protrusions 7 and 8 are integrally provided, which project out from the side surfaces 6c and 6d in the width direction and come close to or contact with the first surface 21a or the second surface 31a in the height direction.SELECTED DRAWING: Figure 1 【課題】省スペースでありながら、シール対象２部材の締結時の倒れが生じ難く、且つ、圧縮反力の小さなガスケットを提供する。【解決手段】相互に合体される第１部材２及び第２部材３間に圧縮状態で介在されるガスケット５である。第１部材２の平面形状の第１面２１ａ及び第２部材３の平面形状の第２面３１ａの間に挟持される環状の本体部６を含む。本体部６は、その周方向ａに直交する幅方向ｂの寸法ｄ１が高さ方向の寸法ｄ２より小とされる。本体部６の側面６ｃ，６ｄには、当該側面６ｃ，６ｄから幅方向に突出し、且つ、高さ方向において第１面２１ａまたは第２面３１ａに近接または接触する倒れ防止用突起７，８が一体に設けられている。【選択図】図１