不含滾珠軸承、滑動軸承或滾柱軸承的單件或多件式組件。其設計旨在滿足各種或特定的安裝條件。對於帶有軸承的組件,請參閱滾珠軸承單元;滑動軸承單元;以及滾柱軸承單元。
hatch ballistic; acft carrier cvn 70 end item identification, mil-b-24059 mil std single material response overall material document and classification, copper alloy overall material, 3.2510 inches minimum and 3.2530 inches maximum bore diameter, square block w/round bore; grease groove & one screw hole on right special features