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David Clark Ground Support Headset

David Clark Co. Australia
Part # H133C=UD
The H133C is a ground support headset, designed for high-noise environments to provide clear communication and effective hearing protection.

FEATURES
• M-101 dynamic noise-canceling microphone
• Foam-filled ear seals for comfort
• Adjustable headband spring assembly for custom fit
• Passive noise attenuation rating of 140 dB

BENEFITS
• Provides isolated reception and exceptional speech intelligibility
• Ensures rugged reliability in demanding environments
• Enhances comfort for long-duration use

SPECIFICATIONS
• Part number: H133C
• Country of Origin: United States
• Earphone Impedance: 19Ω each, wired in parallel
• Earphone Sensitivity: 90 dB SPL @ 1mW input @1KHz
• Microphone Impedance: 5Ω nominal
• Microphone Sensitivity: 0.07 – 14mV @ 1kHz for 103 dB SPL input
• Microphone Frequency Response: 300Hz – 3,000Hz
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NSN
 
Cage Code
 
Country of origin
United States 
ECCN / USML
EAR99 
Schedule B
8518302000 
Dimensions (L x W x H)
0 x 0 x 0 IN
Total Shelf Life (days)
No Information
Hazmat Code
Package Weight
0 LB
FAA Approval Code
N/R
ISBN
 
Condition
Color
 
Brand
 
Hazmat(Y/N)
Y 
LTL(Y/N)
N 
8130-3 Eligible
No 
Forecasted
Yes

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