NPFC - MIL-E-18239
EARPHONE H-87B/U
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| Organization: | NPFC |
| Publication Date: | 17 December 1982 |
| Status: | active |
| Page Count: | 21 |
scope:
This specification covers one type of moving-coil, dynamic type earphone designated as H-87B/U. This earphone transforms electrical energy into acoustical energy and may be acquired normally as component parts of a complete headset assembly.
Earphones shall be of the following types as specified (see 6.2).
Type Figure Part Number Type 1 Figure 1 M18239-1 Type 2 Figure 2 M18239-2 Type 4 Figure 3 M18239-4
Type 2 supersedes Type 3, items in stock may be used until exhausted.
intended Use:
These earphones are intended for use with a variety of headsets and helmets required for aircraft communicating facilities in performance of the function intended (see 3.4). In addition, these... View More
Document History
October 2, 2023
Earphone H-87B/U
A description is not available for this item.
November 25, 2013
EARPHONE H-87B/U
These earphones are intended for use with a variety of headsets and helmets required for aircraft communicating facilities in performance of the function intended (see 3.4). They are used with cord...
October 31, 2000
EARPHONE H-87B/U
These earphones are intended for use with a variety of headsets and helmets required for aircraft communicating facilities in performance of the function intended (see 3.4). In addition, these...
MIL-E-18239
December 17, 1982
EARPHONE H-87B/U
This specification covers one type of moving-coil, dynamic type earphone designated as H-87B/U. This earphone transforms electrical energy into acoustical energy and may be acquired normally as...