McFarlane Aviation Products

Part Number: MC0442506-11

STOP LUG, Torque Link

Eligibility Notice

Please verify that this product is eligible for your aircraft before adding it to your cart.

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Approval	FAA-PMA
Condition	New
Manufacturer	McFarlane Aviation, Inc.
Unit of Measure	Each
Retail Price	$584.01
Your Price	$227.42
Stock Status	In Stock

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Product Details

Torque Link Stop Lugs and Safety Plate
Replace worn out stop lugs to reduce drag? Really?

This often overlooked but important part is affordable at McFarlane!
The torque link stop lug is a sacrificial part that hammers against a flat spot on the lower part of the shock strut outer tube when the strut extends after takeoff. This prevents the strut from overextending and forces the nose wheel and rudder system into proper alignment for flight.

Due to repeated hammering with every takeoff, these stop lugs must be periodically replaced. Excessive wear can allow overextension of the strut. They also often wear unevenly resulting in inconsistent alignment of the nose wheel in flight which then causes extra drag and yaw. The extra yaw can require increased rudder trim which causes even more drag. So yes, replacing a torque link stop lug can reduce drag!

Safety plate features bend up tabs to secure stop lug bolts
Super tough 4130 alloy steel for corrosion resistance
Kits include stop lug, safety plate and applicable 3/16" bolts

Other nose wheel steering parts:

Maintenance Tip:
Replace the stop lug if it is no longer flush with the strut, mushroomed, worn, rounded, bent away from the torque link, or if it has stress cracks. The safety plate should not be reused.

More important than you think
Overextension of the nose strut due to a worn out stop lug can lead to a cascade of problems. McFarlane A&P mechanics have seen struts over extend to the point where the metering pin comes out of the orifice. This results in loss of dampening action and the pin hammering the orifice every landing, and distorting and enlarging it. Over time, the excess nose strut travel and lack of dampening can result in fatigue cracks in the torque link arms. McFarlane recommends thoroughly inspecting all nose strut components when replacing a severely worn stop lug.

Supersedures

Eligibility Notice

Please verify that this product is eligible for your aircraft before adding it to your cart.

Click here to view product eligibility.

OEM Part Number	McFarlane Part Number	Comment
0442506-11	MC0442506-11
0442506-6	MC0442506-11

Related Categories

Landing Gear Components >> Torque Link Stop Lugs and Safety Plate

Eligible Aircraft

Make	Series	Model	Beginning S/N	Ending S/N	Quantity Per Aircraft	Location	Comment	Eligibility Chart
Cessna	182	182K	18257626	18258505	1	Nose Gear Strut		6729
Cessna	182	182L	18258506	18259305	1	Nose Gear Strut		6729
Cessna	182	182M	18259306	18260055	1	Nose Gear Strut		6729
Cessna	182	182N	18260056	18260825	1	Nose Gear Strut		6729
Cessna	182	182P	18260826	18262465	1	Nose Gear Strut	When Equipped with Standard Duty Gear, replaces 0442506-6	6729
Cessna	182	182P	18262466	18265175	1	Nose Gear Strut		6729
Cessna	182	182Q	18265176	18267715	1	Nose Gear Strut		6729
Cessna	182	182R	18267716	18268586	1	Nose Gear Strut		6729
Cessna	182	182S	18280001	18280944	1	Nose Gear Strut		6729
Cessna	182	182T	18280945	182999999	1	Nose Gear Strut		6729
Cessna	182	F182P	F18200001	F18200025	1	Nose Gear Strut		6729
Cessna	182	F182Q	F18200026	F18200169	1	Nose Gear Strut		6729
Cessna	182	T182	18267716	18268541	1	Nose Gear Strut		6729
Cessna	182	T182T	T18208001	T182999999	1	Nose Gear Strut		6729

Frequently Asked Questions

Question
What does the Torque Link Stop Lug do? The torque link stop lugs are more important than you would think. Overextension of the nose strut due to a worn out stop lug can lead to a cascade of problems. McFarlane A&P mechanics have seen struts over extend to the point where the metering pin comes out of the orifice. This results in loss of damping action and the pin hammering the orifice every landing and distorting and enlarging it. Over time, the excess nose strut travel and lack of damping can result in fatigue cracks in the torque link arms. McFarlane recommends thoroughly inspecting all nose strut components when replacing a severely worn stop lug. The stop lug also acts as a centering device aligning the nose wheel and wheel pant straight with the airplane and slip stream after it has left the runway. Worn stop lugs can allow the nose wheel to lock in a turned position in flight that will require holding rudder for coordinated flight. Retractable gear aircraft depend on the stop lug to properly center the nose gear steering before it retracts into the wheel well.