The retaining nut threads onto the threaded section of the control on the back side of the instrument panel to secure the control. Replacement retaining lock washer p/n EC111 for all McFarlane controls that attach to the instrument panel with a 1/2-20 thread.
- FAA-PMA (Sub-Component of Approved Article) Approved
- Manufactured by McFarlane Aviation, Inc.

MC471-052 Piper Control Knob, Round, Ivory, Polished, FAA-PMA Replacement | MC471052
AF2643092-1020 Torque Link Bolt, .020 Oversize, Cessna Caravan 208 | AF26430921020 