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。
zzzy criticality code justification, 81349-mil-i-45208 government specification and 96906-mil-std-278 government standard and 96906-mil-std-129 government standard and 81349-mil-p-23199 government specification and 80204-ansi-b46.1 professional/industrial association standard and 96906-mil-std-248 government standard and 81348-qq-s-763/cl 304l/cond a/ government specification specification/standard data, steel comp 304l overall material, qq-s-763/cl 304l/cond a fed spec single material response overall material document and classification, material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications reference number differentiating characteristics