Special Features:

C/o 1 link, 2 bearings; same as -501 except engineer order; 501 superseded by -503; 503 can be used to replace the -501 for all c-17 aircraft per engineer order

Properties:

A device of various shapes to be permanently attached to the structure of an aircraft. It is designed to permanently mount and/or support an integral member, or group of members of the airframe in a proper position and bear the stress imposed by the components being supported. It may have mounting provisions, such as slots, holes, and/or attachments to facilitate installation. Excludes items which are primarily designed for dampening shock and/or vibration. Excludes bracket, angle; bracket, double angle; bracket, shelf; bracket, mounting; and bracket (1), structural component, aircraft.