MIL-DTL-3890C
3.9 RF power handling capability (when specified, see 3.1). W hen tested as specified in 4.5.6, the
lines shall meet the following requirements after each test:
Attenuation
Shall be as specified (see 3.1).
Voltage standing wave ratio
Shall be as specified (see 3.1).
3.10 Dielectric withstanding voltage. W hen tested as specified in 4.5.7, the lines shall show no
evidence of voltage breakdown.
3.11 Vibration, high frequency. W hen tested as specified in 4.5.8, the lines shall meet the following
requirements:
Attenuation
Shall be as specified (see 3.1).
Voltage standing wave ratio
Shall be as specified (see 3.1).
3.12 Pressurization (when specified, see 3.1). W hen lines are tested as specified in 4.5.9, there
shall be no loss of pressurization as indicated by bubbles.
3.13 Marking. Marking shall be in accordance with MIL-STD-1285 and shall be on each length of
line at intervals of not more than 1.5 feet. The manufacturer's name or trademark may also be marked on
the lines provided such letters are not expressly forbidden in the contact or order, and their height does
not exceed 0.5 inch (12.7mm).
3.14 W orkmanship. Lines shall be processed in such a manner as to be uniform in quality and shall
be free from pits, corrosion, cracks, rough edges, chips, burrs, scratches, flaws and other defects that will
affect life, serviceability, or appearance. The ends shall be cut square.
4. VERIFICATION
4.1 Classification of inspections. The inspections specified herein are classified as follows:
a. First article inspection (see 4.3).
b. Conformance inspection (see 4.4).
c. Materials inspection (see 4.2).
4.2 Materials inspection. Materials inspection shall consist of certification supported by verifying data
that the materials listed in table II, used in fabricating the lines are in accordance with the applicable
referenced specifications or requirements prior to such fabrication.
TABLE II. Materials inspection.
Material
Requirement
Applicable specification
paragraph
or publication
Aluminum
3.3.1.1
SAE-AMS-WW -T-700/1
Aluminum alloy
3.3.1.1.1
ASTM B210
Chemical treatment
3.3.1
MIL-DTL-5541
ASTM B372 or
Copper
3.3.1.2
Copper alloy
3.3.1.2.1
ASTMB188
4
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