MIL-DTL-27467B
4.6.5 Salt fog. The headset or headset-microphone shall be tested in accordance with test
method 101, Salt Atmosphere, of MIL-STD-202, test condition B. Upon completion of the test in 4.5.2 shall be
performed (see 3.6.5).
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order
(see 6.2). When packaging of materiel is to be performed by DoD or in-house contractor personnel, these personnel
need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are
maintained by the Inventory Control Point's packaging activities within the Military Service or Defense Agency, or
within the Military Service's system commands. Packaging data retrieval is available from the managing Military
Department's or Defense Agency's automated packaging files, CD-ROM products, or by contacting the responsible
packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)
6.1 Intended use. Headset Electrical H-154A/AIC is intended for use with Helmet, Flying HGU-26/P. The headset
includes a plug connector to plug in a low impedance dynamic microphone which is mounted in an oxygen mask.
The headset is intended for use with Intercommunication Sets AN/AIC-10 and AN/AIC-18 to provide communication
of high intelligibility under the extreme noise conditions encountered in military aircraft.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a. Title, number, and date of this specification.
b. Contract number.
c. When first article is required (see 3.1).
d. Packaging requirements (see 5.1).
6.3 Tin whisker growth. The use of alloys with tin content greater than 97 percent may exhibit tin whisker growth
problems after manufacture. Tin whiskers may occur anytime from a day to years after manufacture, and can
develop under typical operating conditions on products that use such materials. Conformal coatings applied over top
of a whisker-prone surface will not prevent the formation of tin whiskers. Alloys of 3 percent lead have shown to
inhibit the growth of tin whiskers (see 3.2.1).
6.4 Environmentally preferable material. Environmentally preferable materials should be used to the maximum
extent possible to meet the requirements of this specification. Table III lists the Environmental Protection Agency
(EPA) top seventeen hazardous materials targeted for major usage reduction. Use of these materials should be
minimized or eliminated unless needed to meet the requirements specified herein (see section 3).
TABLE III. EPA top seventeen hazardous materials.
Benzene
Dichloromethane
Tetrachloroethylene
Cadmium and Compounds
Lead and Compounds
Toluene
Carbon Tetrachloride
Mercury and Compounds
1,1,1 - Trichoroethane
Chloroform
Methyl Ethyl Ketone
Trichloroethylene
Chromium and Compounds
Methyl Isobutyl Ketone
Xylenes
Cyanide and Compounds
Nickel and Compounds
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