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David Clark 40493G-01 Dual-Ear Military Aviation Headset | C-17 Use
The David Clark 40493G-01 is a durable, dual-ear aviation headset designed for military aircrew operating in high-noise environments such as the C-17 and similar transport aircraft.
Dual-ear, over-the-head style with comfort-gel ear seals for full noise isolation
M-7A amplified electret noise-canceling microphone for clear communication
5 ft coiled cord with U-174/U plug and single volume control
23 dB NRR for effective passive noise reduction in high-decibel cockpits
Super-soft, double-foam head pad and cushioned ear cups for long-wear comfort
Rugged nickel-chrome hardware built for military-grade reliability
Purpose-built for military aviation, the David Clark 40493G-01 headset delivers exceptional noise attenuation and voice clarity during critical missions. With its M-7A noise-canceling microphone and passive 23 dB NRR, this headset ensures effective communication even in loud transport aircraft like the C-17 Globemaster.
The dual-ear design provides full coverage while the comfort-gel ear seals and double-foam head pad reduce fatigue over extended flights. Featuring a 5 ft coiled cord and U-174/U plug, the headset connects directly to standard military intercom systems. A single volume control knob on the ear dome allows for easy in-flight adjustments. Designed for performance and built to last, the 40493G-01 meets the rugged demands of active duty aircrew operations.
Part Number: 40493G-01
Headset Style: Dual-ear, over-the-head
Microphone: M-7A electret, noise-canceling
Cord: 5 ft coiled
Connector: U-174/U (single-plug military standard)
Impedance: 600 ohms (300 ohms per side in parallel)
Noise Reduction Rating: 23 dB (passive)
Weight: Approx. 16.5 oz (488 g)
Comfort Features: Comfort-gel ear seals, soft double-foam head pad
Used 7 on heavily oxidized Airstream. Sanded off oxidation. Presto changeo, an almost mirror-like finish. Will stick with Nuvite. Important to follow instructional video.
This is an amazing aid to my fisning. Something serious inland fishermen should have. My only regret is that I didn't have this over the last 20 years.
