40863G-02 - David Clark Headset Undercut Ear Seal 1 Pair

40863G-02 – David Clark Headset Undercut Ear Seal 1 Pair

Available now on the Airparts.aero Marketplace.

Overview

The David Clark 40863G-02 is a genuine OEM pair of patented "Undercut" gel ear seals, representing a significant upgrade in comfort and performance for the entire H10-series of aviation headsets. These ear seals are filled with a proprietary silicone gel that conforms perfectly to the contours of the head, providing a superior acoustic seal and exceptional comfort. The unique "undercut" design features a tapered inner edge, which provides greater internal volume within the earcup, making them exceptionally comfortable for users who wear eyeglasses or sunglasses.

Key Features

• Patented Undercut Design: The inner portion of the gel seal is tapered back, creating more room for the ear within the earcup. This design dramatically reduces pressure points and is specifically engineered to allow the temple bars of eyeglasses to sit comfortably without breaking the acoustic seal.
• Silicone Gel Comfort: Each seal is filled with a soft, pliable silicone gel. The gel conforms perfectly to the skin, creating a custom fit that evenly distributes pressure and eliminates the painful "hot spots" associated with standard foam seals during long flights.
• Superior Noise Attenuation: The conforming nature of the gel creates a highly effective acoustic barrier against low-frequency engine and wind noise, significantly enhancing the headset's overall passive Noise Reduction Rating (NRR).
• Durable Urethane Construction: The outer bladder containing the gel is made from a durable, yet soft, urethane material that is resistant to sweat, oils, and environmental wear, ensuring a long service life.
• Genuine David Clark Quality: As a genuine OEM comfort upgrade, this kit guarantees a perfect fit on all H10-series headsets and provides the legendary quality and durability expected from the David Clark Company.

Technical Specifications

• Part Number: 40863G-02
• Manufacturer: David Clark Company
• Component Type: Pair of Undercut Gel Ear Seals
• Fill Material: Silicone Gel
• Outer Material: Polyurethane
• Design Feature: Tapered "Undercut" Inner Edge
• Certification: FAA TSO Approved as part of a complete David Clark headset assembly.

Headset Compatibility

The 40863G-02 Undercut Ear Seals are designed to fit the entire range of David Clark's iconic H10-series headsets, making them a universal comfort and performance upgrade.

• Compatible Headset Series:
  • H10-Series: H10-13.4, H10-13S, H10-13H, H10-20, H10-30, H10-60, etc.
  • H20-10 Headset

Applications

The 40863G-02 is the premier choice for enhancing headset performance and comfort:

• Comfort Upgrade: The primary application is to replace standard foam ear seals to achieve a significant improvement in long-duration comfort.
• Pilots Who Wear Glasses: Specifically recommended for any pilot who wears prescription eyeglasses or sunglasses, as the design minimizes pressure and maintains a better seal around the glasses' temple bars.
• Headset Refurbishment: An essential component for restoring an older headset to like-new condition in terms of comfort, hygiene, and noise-blocking performance.

Why Choose 40863G-02?

The comfort and effectiveness of your headset have a direct impact on your focus and fatigue in the cockpit. The David Clark 40863G-02 undercut gel seals provide a tangible upgrade you can feel immediately. They offer a quieter, more comfortable experience, especially for pilots who wear glasses and have struggled to get a proper seal with traditional ear cups. For a relatively small investment, this genuine David Clark kit delivers a major enhancement to your flight experience.

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• Meta Description: Purchase the genuine David Clark 40863G-02 undercut gel ear seals (1 pair). A premium comfort upgrade for all H10-series headsets, ideal for pilots who wear glasses.
• SEO and Plain Text Keywords: 40863G-02, David Clark, gel ear seals, undercut ear seals, headset ear seals, H10-13.4 parts, aviation headset parts, headset comfort kit, pilot headset, OEM David Clark, Airparts.aero.

Order Your David Clark 40863G-02 Ear Seals Now

Upgrade the comfort and performance of your David Clark headset. Visit Airparts.aero to order your 40863G-02 undercut gel ear seals today.

SEO-Enhanced Addendum

The effectiveness of a passive noise reduction headset is entirely dependent on its ability to create a sealed air cavity around the ear. The 40863G-02's gel-filled design excels at this. Unlike foam, which compresses and can leave small gaps, the viscous gel flows and conforms to any irregularity, such as the temple bar of a pair of sunglasses. The patented undercut shape further enhances this by creating a larger internal earcup volume, which not only improves comfort but also slightly changes the acoustic properties of the ear cavity, often resulting in a perceived improvement in audio quality from the speakers. This combination of material science and ergonomic design is what makes these seals a premier upgrade.

Note: This is a user-serviceable part. Ear seals should be replaced every 6 months to a year depending on use, or any time they become hardened, cracked, or torn, to ensure proper hygiene and peak noise-reduction performance. Installation requires removing the old ear seal and its retaining ring, placing the new seal on the earcup, and snapping the retaining ring back into place.