MIL-PRF-87819 Headset-Microphone, \(Hearing Protective Type, High And Moderate Ambient Noise Levels\), General Specification ForThis specification covers the requirements for headset-microphone with rigid headband. These parts meet established requirements for communications equipment used to protect against hazardous noise exposure, and are approved for use in certain high and moderate ambient noise level applications \(see 6.1\). The term headset is to be used interchangeably for headset-microphone and is used when referring to any of the articles covered in this specification.

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MIL-PRF-87819B

2.2 Government documents.

2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and

handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the

issues of these documents are those cited in the solicitation or contract.

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-DTL-55668

Cord, Electrical, Audio, Subminiature (Retractile And Straight).

MIL-DTL-9177/2

Connector, Audio, Airborne, Plug, Miniature, 4 Contact.

MIL-PRF-87819/1

Headset-Microphone, Hearing Protective Type High Ambient Noise Levels,

105-125 dB, M87819/1-01.

MIL-PRF-87819/4

Headset-Microphone, Hearing Protective Type Moderate Ambient Noise

Levels, 105 dB, In-flight Aircrew Headset-Microphone, M87819/4-01.

MIL-PRF-87819/5

Headset-Microphone, Hearing Protective Type Moderate Ambient Noise

Levels, 105 dB, Enlarged Earcup, In-flight Aircrew Headset-Microphone,

M87819/5-01.

MIL-PRF-87819/6

Headset-Microphone, Hearing Protective Type Moderate Ambient Noise

Levels, 105 dB, Enlarged Earcup, In-flight Aircrew Headset-Microphone,

M87819/6-01

DEPARTMENT OF DEFENSE STANDARDS

MIL-STD-202

Test Methods for Electronic and Electrical Component Parts.

MIL-STD-810

Environmental Test Methods and Engineering Guidelines.

MIL-STD-1285

Marking of Electrical and Electronic Parts.

(Copies of these documents are available online at https://assist.daps.dla.mil/quicksearch/ or from the

Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-

5094.)

2.2.2 Other Government documents, drawings, and publications. The following other Government

documents, drawings, and publications form a part of this document to the extent specified herein.

Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

DRAWINGS

U.S. Air Force (CAGE 97151)

57B12662

Plug connector, Electrical U-173/U, Assembly of

9312801

Earphone Cushion - Headset.

(Copies of these documents are available online at https://www.dscc.dla.mil/programs/milspec/ or from

the Defense Supply Center Columbus, ATTN: VAI, P.O. Box 3990, Columbus, Ohio 43218-3990.)

2.3 Non-Government publications. The following documents from a part of this document to the extent

specified herein. Unless otherwise specified, the issues of these documents are those cited in the

solicitation or contract.

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI S3.2

Method for the Measurement the Intelligibility of Speech over Communication

Systems.

ANSI S3.7

Method for Coupler Calibration of Earphones.

ANSI S12.42

Microphone-In-Real-Ear and Acoustic Testing Methods for the measurement

of Insertion Loss of Circumaural Hearing Protection Devices.