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Aviation Flight Helmet Adapter with U174/U for Relm BK KNG & KNG2 Radios

Aviation Flight Helmet Adapter with U174/U for Relm BK KNG & KNG2 Radios

$365.00
$365.00
Sale Sold out

Details

What is the AVKNGFH9R Adapter?

The Aviation Flight Helmet Adapter allows for the connection of the nexus plug from the helicopter flight helmet to the side port of your Bendix King KNG handheld radio for easy and cost effective communications with aircraft on wildland fire incidents.  This adapter uses the PTT button on the Nexus plug to key up your handheld radio and communicate through the mic in your flight helmet.

Works with the following Bendix King Radios: 

  • KNG P150 and KNG P150 Command Series Radios
  • KNG P150S Series Radios
  • KNG P400 Series Radios
  • KNG P400S Series Radios

Is your Helmet Compatible?

The aviation flight helmet adapters are compatible with many helmets types that utilize a Nexus U-174 nexus connector. There are 2 common wiring standards for this connector. The adapters use the Peltor wiring standard for this connector which is also compatible with NATO-UK (most civilian helicopter flight helmets in the US use this standard), however there are some flight helmets that use the NATO-US wiring standard for this connector.


This is a compatible connector type, but not when wired to US military standards; however, many companies wire this connector to the Peltor standard. Some companies will even wire this connector to either standard based on customer preference.  Double check with manufacturer to confirm the wiring of your flight helmet.

While we can help you determine which connector you have, it is impossible for us to know exactly which wiring configuration was used. While the vast majority of US civilian flight helmets are compatible, if you are still unsure, often you can find out from the manufacturer of your helmet which wiring standard your connector is. 

Frequently Asked Questions:

  1. What connector does this adapter use?
    Nexus PTT (M9177/5-1 U-94A/U)

  2. What wiring standard was the Nexus plug wired to?
    Our adapters are wired to Peltor or "Helicopter" standard.

  3. Will this work with a David Clark Headset?
    Yes as long as the Nexus plug is wired in the Peltor configuration and the mic is the low impedance (civilian) version. 

* Design based on Aviation Contract: ACS 988-3 Air Com NFES 5328 NIFC.

Shipping

We offer fast shipping options to ensure you receive your products quickly. Most orders are shipped the same day if placed before 2 PM. Tracking information will be provided for your convenience.

Returns

We strive for your complete satisfaction. If you are not satisfied with your purchase, you may return it within 30 days for a full refund. Please ensure the product is in its original condition.

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Complete Your Aviation Flight Helmet Adapter

Compatible batteries, chargers, mics, and accessories for this BK Technologies radio. Quote together for volume pricing.

Request a Quote for the Complete Kit

Frequently Asked Questions

Do I need an FCC license for this radio? +

Most business and public-safety two-way radios operate on licensed frequencies that require an FCC license. Agencies typically already hold an FCC license for their frequency allocations. If you're new to LMR, our team can help with FCC licensing — read our FCC licensing guide or contact us for assistance.

Is programming included with this radio? +

Yes — as a factory-authorized dealer, New London Technology offers free fleet programming with most quote orders. We can pre-load your agency's codeplug (NIFOG, NIFC, CAL FIRE, interagency channels, etc.) before shipment so radios arrive field-ready.

What warranty does this radio come with? +

2 years (standard manufacturer warranty). New London Technology is a factory-authorized service center — warranty repairs and out-of-warranty service both handled in-house for fast turnaround.

What is the lead time for delivery? +

Standard radios ship within 2-3 business days. Custom-configured radios typically ship in 2-3 weeks. Once you submit a quote request, our team confirms lead time within one business day.

Is this radio NDAA-compliant? +

Most radios from our authorized brands (Tait, BK Technologies, L3Harris, Motorola) offer NDAA-compliant configurations required for federal and DoD use. Specify NDAA compliance in your quote request and we'll confirm the correct SKU and configuration for your requirement.

Can I get volume pricing for my agency or fleet? +

Yes — volume discounts kick in at modest quantities. Request a quote with your expected quantity and we'll return agency-specific pricing.

  • Key Features

    P25 Conventional, Enhanced Noise Cancellation, and Integrated GPS/Location Services for superior performance.

  • Available Models

    Choose between High Vis Yellow and Command Models to suit your needs.