McFarlane Aviation Products

Part Number: MC0442506-9

SAFETY PLATE, Stop Lug, Torque Link

Eligibility Notice

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

Click here to view product eligibility.

Approval	FAA-PMA
Condition	New
Manufacturer	McFarlane Aviation, Inc.
Unit of Measure	Each
Retail Price	$87.75
Your Price	$31.94
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
0442506-9	MC0442506-9

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	150	150D	15060477	15060772	1	Nose Gear Strut	When Equipped with Heavy Duty Nose Gear	6729
Cessna	150	150E	15060773	15061532	1	Nose Gear Strut	When Equipped with Heavy Duty Nose Gear	6729
Cessna	150	150F	15061533	15063457	1	Nose Gear Strut	When Equipped with Heavy Duty Nose Gear	6729
Cessna	150	150G	15064533	15067198	1	Nose Gear Strut		6729
Cessna	150	150H	15067199	15069308	1	Nose Gear Strut		6729
Cessna	150	150J	15069309	15071128	1	Nose Gear Strut		6729
Cessna	150	150K	15071129	15072003	1	Nose Gear Strut		6729
Cessna	150	150L	15072004	15075781	1	Nose Gear Strut		6729
Cessna	150	150M	15075782	15079405	1	Nose Gear Strut		6729
Cessna	150	A150K	A1500001	A1500226	1	Nose Gear Strut		6729
Cessna	150	A150L	A1500227	A1500523	1	Nose Gear Strut		6729
Cessna	150	A150M	A1500524	A1500734	1	Nose Gear Strut		6729
Cessna	150	F150F	F150-0001	F150-0055	1	Nose Gear Strut		6729
Cessna	150	F150G	F150-0068	F150-0219	1	Nose Gear Strut		6729
Cessna	150	F150H	F150-0220	F150-0389	1	Nose Gear Strut		6729
Cessna	150	F150J	F150-0390	F150-0529	1	Nose Gear Strut		6729
Cessna	150	F150K	F15000530	F15000658	1	Nose Gear Strut		6729
Cessna	150	F150L	F15000659	F15001143	1	Nose Gear Strut		6729
Cessna	150	F150M	F15001144	F15001428	1	Nose Gear Strut		6729
Cessna	150	FA150K	FA1500001	FA1500081	1	Nose Gear Strut		6729
Cessna	150	FA150L	FA1500082	FA1500120	1	Nose Gear Strut		6729
Cessna	150	FA150L (when equipped w/FKA150-2311 & FKA150-2316)	FA1500121	FA1500261	1	Nose Gear Strut		6729
Cessna	150	FA150M (when equipped w/FKA150-2311 & FKA150-2316)	FA1500262	FA1500336	1	Nose Gear Strut		6729
Cessna	152	152	15279406	15286033	1	Nose Gear Strut		6729
Cessna	152	A152	A1520735	A1521049	1	Nose Gear Strut		6729
Cessna	152	F152	F15201429	F15201980	1	Nose Gear Strut		6729
Cessna	152	FA152	FA1520337	FA1520425	1	Nose Gear Strut		6729
Cessna	172	172H (T-41A)	17254893	17256512	1	Nose Gear Strut	When equipped with Heavy Duty Nose Gear	6729
Cessna	172	172H (T-41A)	17254893	17256512	1	Nose Gear Strut		6729
Cessna	172	172I	17256513	17257161	1	Nose Gear Strut	When equipped with Heavy Duty Nose Gear	6729
Cessna	172	172I	17256513	17257161	1	Nose Gear Strut		6729
Cessna	172	172K	17257162	17259223	1	Nose Gear Strut	When equipped with Heavy Duty Nose Gear	6729
Cessna	172	172K	17257162	17259223	1	Nose Gear Strut		6729
Cessna	172	172L	17259224	17260758	1	Nose Gear Strut	When equipped with Heavy Duty Nose Gear	6729
Cessna	172	172L	17259224	17260758	1	Nose Gear Strut		6729
Cessna	172	172M	17260759	17263458	1	Nose Gear Strut		6729
Cessna	172	172M	17260759	17263458	1	Nose Gear Strut	When equipped with Heavy Duty Nose Gear	6729
Cessna	172	172M	17263459	17267584	1	Nose Gear Strut		6729
Cessna	172	172N	17267585	17274009	1	Nose Gear Strut		6729
Cessna	172	172P	17274010	17276654	1	Nose Gear Strut		6729
Cessna	172	172Q	17275869	17276211	1	Nose Gear Strut		6729
Cessna	172	172R	17280001	17281221	1	Nose Gear Strut		6729
Cessna	172	172R	17281222	17299999	1	Nose Gear Strut		6729
Cessna	172	172S	172S8001	172S9657	1	Nose Gear Strut		6729
Cessna	172	172S	172S9658	172S99999	1	Nose Gear Strut		6729
Cessna	172	F172H	F17200655	F17200754	1	Nose Gear Strut		6729
Cessna	172	F172H	F17200655	F17200754	1	Nose Gear Strut	When equipped with Heavy Duty Nose Gear	6729
Cessna	172	F172H	F172-0320	F172-0654	1	Nose Gear Strut		6729
Cessna	172	F172H	F172-0320	F172-0654	1	Nose Gear Strut	When equipped with Heavy Duty Nose Gear	6729
Cessna	172	F172K	F17200755	F17200804	1	Nose Gear Strut		6729
Cessna	172	F172K	F17200755	F17200804	1	Nose Gear Strut	When equipped with Heavy Duty Nose Gear	6729
Cessna	172	F172L	F17200805	F17200904	1	Nose Gear Strut	When equipped with Heavy Duty Nose Gear	6729
Cessna	172	F172L	F17200805	F17200904	1	Nose Gear Strut		6729
Cessna	172	F172M	F17200905	F17201234	1	Nose Gear Strut		6729
Cessna	172	F172M	F17200905	F17201234	1	Nose Gear Strut	When equipped with Heavy Duty Nose Gear	6729
Cessna	172	F172M	F17201235	F17201514	1	Nose Gear Strut		6729
Cessna	172	F172N	F17201515	F17202039	1	Nose Gear Strut		6729
Cessna	172	F172P	F17202040	F17202254	1	Nose Gear Strut		6729
Cessna	172	FR172E	FR17200001	FR17200060	1	Nose Gear Strut
Cessna	172	FR172E	FR17200001	FR17200060	1	Nose Gear Strut
Cessna	172	FR172E	FR17200001	FR17200060	1	Nose Gear Strut		6729
Cessna	172	FR172E	FR17200001	FR17200060	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	172	FR172F	FR17200061	FR17200145	1	Nose Gear Strut		6729
Cessna	172	FR172F	FR17200061	FR17200145	1	Nose Gear Strut
Cessna	172	FR172F	FR17200061	FR17200145	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	172	FR172G	FR17200146	FR17200225	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	172	FR172G	FR17200146	FR17200225	1	Nose Gear Strut
Cessna	172	FR172G	FR17200146	FR17200225	1	Nose Gear Strut		6729
Cessna	172	FR172H	FR17200226	FR17200350	1	Nose Gear Strut
Cessna	172	FR172H	FR17200226	FR17200350	1	Nose Gear Strut		6729
Cessna	172	FR172J	FR17200351	FR17200590	1	Nose Gear Strut
Cessna	172	FR172J	FR17200351	FR17200590	1	Nose Gear Strut		6729
Cessna	172	FR172K	FR17200591	FR17200675	1	Nose Gear Strut		6729
Cessna	172	R172E (T-41B,C,D)	R172-0001	R1720335	1	Nose Gear Strut		6729
Cessna	172	R172F (T-41D)	R172-0336	R172-0409	1	Nose Gear Strut		6729
Cessna	172	R172G (T-41C,D)	R1720410	R1720444	1	Nose Gear Strut		6729
Cessna	172	R172H (T-41D)	R1720445	R1720620	1	Nose Gear Strut		6729
Cessna	172	R172K	R1722000	R1723454	1	Nose Gear Strut		6729
Cessna	182	182K	18257626	18258505	1	Nose Gear Strut		6729
Cessna	182	182K	18257626	18258505	1	Nose Gear Strut	When Equipped with Heavy Duty Gear	6729
Cessna	182	182L	18258506	18259305	1	Nose Gear Strut		6729
Cessna	182	182L	18258506	18259305	1	Nose Gear Strut	When Equipped with Heavy Duty Gear	6729
Cessna	182	182M	18259306	18260055	1	Nose Gear Strut		6729
Cessna	182	182M	18259306	18260055	1	Nose Gear Strut	When Equipped with Heavy Duty Gear	6729
Cessna	182	182N	18260056	18260825	1	Nose Gear Strut		6729
Cessna	182	182N	18260056	18260825	1	Nose Gear Strut	When Equipped with Heavy Duty Gear	6729
Cessna	182	182P	18260826	18262465	1	Nose Gear Strut		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
Cessna	206	206H	20608001	206999999	1	Nose Gear		6729
Cessna	206	P206B	P206-0307	P206-0419	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	P206C	P206-0420	P206-0519	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	P206D	P206-0520	P206-0603	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	P206E	P20600604	P20600647	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	T206H	T20608001	T206999999	1	Nose Gear		6729
Cessna	206	TP206B	P206-0307	P206-0419	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	TP206C	P206-0420	P206-0519	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	TP206D	P206-0520	P206-0603	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	TP206E	P20600604	P20600647	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	TU206B	U206-0657	U206-0914	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	TU206C	U206-0915	U206-1234	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	TU206D	U206-1235	U206-1444	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	TU206E	U20601445	U20601700	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	TU206F	U20601701	U20602199	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	TU206F	U20602200	U20603521	1	Nose Gear Strut		6729
Cessna	206	TU206G	U20603522	U20607020	1	Nose Gear Strut		6729
Cessna	206	U206B	U206-0657	U206-0914	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	U206C	U206-0915	U206-1234	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	U206D	U206-1235	U206-1444	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	U206E	U20601445	U20601700	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	U206F	U20601701	U20602199	1	Nose Gear Strut	When equipped with heavy landing gear	6729
Cessna	206	U206F	U20602200	U20603521	1	Nose Gear Strut		6729
Cessna	206	U206G	U20603522	U20607020	1	Nose Gear Strut		6729
Cessna	207	207	20700001	20700362	1	Nose Gear Strut		6729
Cessna	207	207A	20700363	20700788	1	Nose Gear Strut		6729
Cessna	207	T207	20700001	20700362	1	Nose Gear Strut		6729
Cessna	207	T207A	20700363	20700788	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.