MIL-PRF-87819/1B
Letter
Inches
mm
Design dimension
Tolerances
Design dimension
Tolerances
A
1.0
± 0.125
25.4
± 0.381
B
7.3
± 0.25
185.42
± 12.7
C
3.5
± 0.25
88.9
± 6.35
NOTES:
1. Dimensions are in inches. Unless otherwise specified, tolerance is ± 0.125 inch. Metric equivalents
are given for information only.
2. Strap dimensions "A". (1.0 inch) shall enable the strap to retain the adjacent connectors under the
stress-and-pull conditions encountered, without adding material, which may entangle during use.
3. Major strap dimensions "B" and "C" (7.3 inches, 3.5 inches) shall allow the straps to support the
weight of the protective shield when fully extended, while providing sufficient material to allow
adjustment of the shield tightly against the standard user head and jaw size when fully tightened.
4. Strap color, material, and connector types shall conform to the requirements of this specification.
FIGURE 3. Microphone strap assembly, typical configuration Continued.
4
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