Marsh Brothers Aviation M1005 - Baron/Bonanza NLG Door Hinge Kit
Cut Maintenance Time and Costs with the Baron/Bonanza NLG Door Hinge Kit
Lubricating the nose landing gear (NLG) door hinge bushings is a routine but often frustrating part of aircraft maintenance, especially when those components are hard to reach. Inadequate lubrication can lead to corrosion, which may result in costly structural damage over time. The Marsh Brothers Baron/Bonanza NLG Door Hinge Kit solves this problem by replacing traditional metal bushings with Grease-Free, Non-Metallic AeroTough® GF bushings. These self-lubricating bushings are engineered to eliminate corrosion, reduce wear, and require no routine greasing, helping you simplify maintenance and protect your aircraft.
Key Benefits
- Self-lubricating: No need to grease hard-to-access hinge bushings.
- Reduces maintenance downtime by eliminating lubrication tasks.
- Lowers maintenance costs by preventing corrosion and extending service life.
- Easy installation for seamless integration with your existing hardware.
| General Information | |
|---|---|
| Part # | M1005 |
| Manufacturer | Marsh Brothers Aviation |
| Shipping Information | |
|---|---|
| Product Weight | 5 lbs. |
| Product Dimensions | 7 x 5 x 3 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* | |
|---|---|
| Hawker Beechcraft | 56TC - Turbo Baron , 58 - Baron , 95-55 - Baron , 95-A55 - Baron , 95-B55 - Baron , 95-B55A - Baron , 95-C55 - Baron , 95-C55A - Baron , A56TC - Turbo Baron , Beech Baron , Beech Bonanza , C55 - Baron , D55 - Baron , D55A - Baron , E55 - Baron , E55A - Baron , Twin-Bonanza |
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QUESTIONS & ANSWERS
Over time, landing gear door hinges—typically made of metal—can experience significant wear from repeated opening and closing of the nose gear door. This mechanical stress may lead to looseness, misalignment, or even structural failure.
Corrosion is another common issue, especially due to prolonged exposure to moisture and environmental elements, which can weaken the hinge components. Inadequate inspection or lubrication can further accelerate deterioration, increasing the likelihood of premature hinge replacement.
Marsh Brothers' nose landing gear (NLG) door hinge bushing kits address premature wear by transferring the wearing surface from the aluminum hinge arms to AeroTough® GF polymer bushings, which are pressed into the arms. These high-performance, self-lubricating bushings are specifically engineered to resist wear and eliminate metal-on-metal contact.
Each kit also includes stainless steel sleeves that are corrosion-resistant and designed to maintain a tight, durable fit over time. Together, these components create a long-lasting, low-maintenance joint that significantly reduces play, protects the original hinge structure, and extends the service life of the assembly.
Yes—lubrication is not required, as the bushings are designed to run dry. However, if lubrication is applied unintentionally, it won’t cause harm. The material is compatible with oil and grease, but performs reliably without them.
Yes, the kit holds FAA STC No. SA03853NY and Transport Canada STC No. SA16-21, making it legal for use in U.S. and Canadian-registered Beech Baron aircraft.
If the airframe has suffered previous corrosion or mechanical wear, reaming may be required to ensure a proper fit. This step helps prepare the surface for optimal bushing installation and alignment.
Yes! By maintaining a smooth, corrosion-free pivot surface, these bushings help preserve proper gear door alignment and movement, preventing issues like binding or dragging that can affect landing gear operation.
