一種管狀無螺紋物件,一端帶或不帶凸緣,設計用於插入孔中以減小孔的內徑,並保護周圍的主體結構免受應力、應變和/或振動造成的損壞。總長度必須超過外徑的25%,或主體週邊平面之間的最短距離。包括分成兩段或多段的物件,且軸承週邊的旋轉角度不超過180度(3.141弧度)。有關橡膠製品,請參閱非金屬襯套。另請參閱軸承,套筒;錐形襯套;墊片,套筒;絕緣體,襯套;以及電導體襯套。不包括:襯套,鑽頭,夾具。
steel comp 303 overall material, solid, external flange one end style designator, mil-f-14072,e300 mil spec single treatment response overall surface treatment document and classification, first end is 0.155 in. dia by 0.065 in. l,thru hole is 0.116 in. dia by 0.097 in. l and chamfered on first end 0.005 in. by 45 deg,second end is 0.265 in. dia by 0.032 in. l special features, qq-s-763,cond a fed spec single material response overall material document and classification