通常為圓柱形,有或沒有法蘭。其設計用於安裝後鑽孔,並用作軸承或襯套。不包括:散裝物品。另請參閱襯套毛坯。
solid, plain, no outside flanges, internal flange one end style designator, 3835015117335, hoseline outfit, fuel handling end item identification, shaft sleeve part name assigned by controlling agency, unable to decode material