The Telex Air 3500 Headset is a passive noise attenuating headset that demonstrates Telex’s commitment to provide the maximum possible hearing protection in noisy aircraft cockpits. The boom and earcup mountings are used as the cord entrances to minimize the number of openings in the earcups. The size and shape of the earcups are optimized for broad-spectrum noise reduction. Three quick-set headset pressure settings let the user select the comfort/noise attenuation setting based on the amount of aircraft noise and personal comfort requirements. Dual-eccentric tension adjustment knobs allow the user to quickly and easily dial in the desired setting.
Unlike some other headset designs, the microphone boom on the Air 3500 mounts to the bottom of the earcup rather than to the side. This assures unobstructed peripheral vision. In addition, the microphone boom and microphone assembly may be worn on either side of the head. Users are able to control the volume in each ear with the separate volume controls for each ear.
Cadmium-bronze wire and tapered strain reliefs ensure long cord life. Polypropylene insulation over wires and urethane jacket for maximum durability. Shielded wire is used throughout for RFI and EMI protection.
- Boom mic mount is secured to the bottom of the ear cup ensuring unobstructed peripheral vision
- Quick-Set Pressure Settings allow users to select the comfort and noise attenuation based on the level of aircraft noise
- Comfortable, foam-filled headband pad and ear cushions evenly distribute the headset's weight avoiding uncomfortable pressure points
- Microphone boom and assemble maybe worn on either side, and the volume for each ear can be adjusted individually
- Cadmium-bronze wire with tapered strain reliefs and polypropylene insulation with urethane jacket provide a long cord life
- Shielded wire provides RFI and EMI protection
Product Codes | |
|---|---|
| Mfr Part No: | 300400-000 |
| ECCN: | 5A991 |
| NSN: | 5965-01-454-8076 |
| PROAPP: | PT4047CE |
| SCHEDULE B CODE: | 8518.30.2000 |
| SIN: | 332999 |
| TSO: | C57a, C58a |
Weight: 13.44 oz (381 g)Cord Length: 2.5 ft (1.6764 m)Frequency Response: 350 Hz – 3,000 HzImpedance: 150Ω – 350ΩMicrophone Frequency Response: 100 Hz – 3,500 HzMicrophone Impedance: 50Ω – 600ΩMicrophone Sensitivity: -55 dBV/PaMicrophone Type: Noise Cancelling Electret CondenserNoise Reduction: Passive ≤24 dBSpeaker: dynamicSpeaker Sensitivity: 85 – 95 dB
- Stock: Out of Stock - On Backorder
- Manufacturer Part #: 300400-000
Available Options
Aircraft Fitment Finder
Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies to all refunds (returns, cancellations, core-fee refunds) regardless of reason.
- Return shipping: paid by buyer.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
Authenticity & authorization
All parts sold by American Aviation Parts are genuine factory products sourced through authorized distribution channels. Our authorization status varies by brand — for some brands we are a direct authorized dealer; for others we are an independent reseller through authorized distribution. Either way, the part you receive is the same factory product, with standard documentation available on request.
See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
Shipping
Standard ground, expedited, and AOG shipping options are available at checkout. Full shipping-cost tiers and timelines are published on our Delivery Information page.
