MIL-DTL-22442/41B(AS)
REQUIREMENTS:
1. The cable (cord) shall be in accordance with the requirements of MIL-C-10392 Type
WM-59A/U, or MIL-C-55668 Type III 2 conductor, or equal.
2. The junction block shall contain a jack capable of mating with Air Force Drawings
57B12662 and 57B12664 which govern the requirements of connector U-l73/U.
3. The junction block shall contain two pins made in accordance with Air Force Drawing
57B12664. The pins shall be arranged to form a U-173/U type connector with the
dimensions specified in Air Force 57B12662.
4. The junction block assembly shall contain an impedance matching transformer made in
accordance with M22442/l-8.
5. Sampling and testing procedures for the plug and jack shall be in accordance with
MIL-P-642 and MIL-J-64l, respectively.
6. The plug and jack in the junction block and the M22442/4l-3 connector shall pass the
following tests when tested in accordance with MIL-P-642 (see 3.4.4) and MIL-J-64l
(see 3.4.5), respectively.
a. Visual and mechanical.
b. Dielectric strength.
c. Contact resistance.
d. Insertion and withdrawal force.
e. Spring life.
f. Salt spray.
g. Insulation resistance.
h. Moisture resistance.
7. When the plug and jack are mated with their proper connector, the insertion force shall be
8 pounds maximum. The withdrawal force shall be 6 ± 2 pounds.
8. After the spring life test, the withdrawal force shall be greater than 60 percent of the
withdrawal force measured prior to test.
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