David Clark H20-10 Headset Parts Guide & Illustrated Catalog

The David Clark H20-10 is a lightweight, over-the-head aviation headset designed for comfort and reliability in general aviation and training environments. Known for its low-profile design and reduced weight, the H20-10 delivers clear communications through the trusted M-7A noise-canceling microphone while maintaining dependable passive noise protection.

Like any professional aviation headset, the H20-10 benefits from regular maintenance and genuine replacement parts. Ear seals wear over time, cords experience stress, and head pads can lose comfort — but with the right parts and upgrades, you can keep your headset flying strong for years.

This guide walks you through the H20-10’s key features, technical specifications, and full illustrated parts catalog (IPC), so you can easily find and shop the exact replacement parts and accessories you need right here at Pilots HQ.

• Lightweight, over-the-head design (~13.4 oz without cord) reduces fatigue on long flights

• Supra-aural (on-ear) ear cups provide a comfortable fit with lower clamping pressure

• Exclusive M-7A noise-cancelling microphone with universal flex boom for clear transmissions

• Passive Noise Reduction Rating (NRR) of approximately 20 dB

• Low-profile headband design for improved comfort in smaller cockpits

• Rugged molded cord assembly engineered for durability under stress and flex

• FAA TSO Approved (C57b, C58a), exceeding RTCA/DO-214 standards

• 5-Year Warranty, proudly Made in the USA

• Model Number: H20-10

• Part Number: 40495G-01

• Weight: Approx. 13.4 oz (without cord)

• Cord: 5 ft straight cord, dual GA plugs (PJ-055 and PJ-068)

• Microphone: M-7A electret, noise-cancelling, flexible boom

• Passive Noise Reduction Rating (NRR): Approx. 20 dB

• Design: Supra-aural (on-ear), lightweight over-the-head style

• Certification: FAA TSO C57b, C58a; exceeds RTCA/DO-214 standards

The David Clark H20-10 provides reliable passive hearing protection designed for general aviation and training environments. With an approximate Noise Reduction Rating (NRR) of 20 dB, the H20-10 helps reduce cockpit noise while maintaining a lightweight, comfortable fit.

Its supra-aural (on-ear) design delivers effective noise attenuation without the added weight of larger over-ear models, making it an excellent choice for flight schools, student pilots, and lower-noise aircraft.

Both models deliver the legendary David Clark build quality, clear communications with the M-7A noise-canceling microphone, and FAA TSO approval. However, they are designed for slightly different pilot needs.

The main differences are design, weight, and noise-reduction level. The H20-10 is a lightweight, supra-aural (on-ear) headset built for comfort and training environments, while the H10 Series (like the H10-13.4) features a larger, over-ear design with higher passive noise reduction.

Key comparison:

• H20-10: Lightweight (~13.4 oz), on-ear design, ~20 dB passive NRR, lower clamping pressure, ideal for flight training and lower-noise aircraft.

• H10-13.4 (H10 Series): Over-ear design, 23 dB passive NRR, slightly heavier (~16.5 oz), better overall noise sealing for louder cockpits.

👉 In short, choose the H20-10 if you prioritize lightweight comfort and training use. Choose the H10 Series if you want stronger passive noise protection and maximum cockpit noise isolation.

David Clark H20-10 Replacement Parts List

1. Volume Control - 09349P-58
2. Washer, Neoprene (10/pk) - 40688G-21
3. Knob, Volume Control - 15423P-01
4. Dome, Stamped RH - 40500G-01
5. Filter, Dome, Yellow (1 each) - 14096P-13
6. Filter, Dome, Charcoal (1 each) - 14096P-12
7. Earphone Assembly - 10376G-20
8. Filter, Dome (1 each) - 25629P-08
9. Flo-Fit Gel Earseals (pr) - 40243G-05
10. Headband Assy Kit - 18900G-73
11. Headpad Latch Kit - 18900G-72
12. Headpad, Stretching - 40501G-01
13. Latch Stop Kit - 18900G-66
14. Dome, Stamped LH - 40499G-01
15. Boom Attachment Kit - 12840G-12
16. Mic Boom Assembly - 18688G-08
17. Microphone Plug Cord - 18744G-01
18. M-7A Electret Mic - 09168P-33
19. Mic Protector w/ O-Ring - 40062G-02
20. Comm Cord Kit - 18028G-01

• Replace ear cushions every 6–12 months, depending on usage and wear.

• Swap out the head pad if it becomes compressed or uncomfortable.

• Inspect cord assemblies and plugs for stress, cracking, or intermittent audio.

• Clean headset surfaces regularly with mild, aviation-safe wipes to remove sweat and oils.

• Store your headset in a protective bag or case between flights to prevent unnecessary wear.

With proper maintenance and genuine replacement parts, your H20-10 can deliver years of lightweight comfort and dependable communication.

Your David Clark H20-10 is built with standard dual GA plugs, but not every aircraft uses the same intercom connector. The good news? With the right adapter, you can fly in different aircraft types without needing a second headset.

Here are the most popular H20-10 compatible adapters:

• GA to Helicopter Adapter (18253G-06): Converts dual GA plugs into a single U-174/U plug for helicopter intercom systems.

• GA to 6-Pin LEMO Adapter: Allows your H20-10 to connect to aircraft equipped with panel-powered 6-pin LEMO jacks (third-party adapter required).

• GA to Airbus XLR Adapter: Connects your H20-10 to Airbus aircraft using 5-pin XLR connectors (third-party adapter required).

👉 With these adapters, your H20-10 becomes a versatile tool—ready for GA, helicopters, or Airbus cockpits, all while maintaining the lightweight comfort pilots appreciate.

Small accessories can make a big difference in headset longevity and comfort. Keeping your headset clean and well-protected helps ensure years of reliable service.