MIL-PRF-39012/55H
REQUIREMENTS:
Dimensions and configuration: See figures 1, 2, 3, and 4.
Force to engage and disengage:
Longitudinal force: Not applicable.
Torque: 2 inch-pounds, maximum.
Coupling proof torque: 15 inch-pounds, minimum.
Inspection conditions: For each test of threaded coupling connectors where the test is performed on
mated pairs, the pairs shall be torqued to 7 to 10 inch-pounds.
Mating characteristics: See MIL-STD-348 for dimensions.
Hermetic seal: Not applicable.
Leakage (pressurized connectors): Not applicable.
Insulation resistance: In accordance with MIL-STD-202: 5,000 megohms, minimum.
Center contact retention: 6 pounds minimum axial force. Applicable to captivated center contacts only.
Radial torque: Not applicable.
Corrosion (salt spray): In accordance with MIL-STD-202.
Voltage standing wave ratio (VSWR): From 0.5 to 12.4GHz, or approximately 80 percent of the cutoff
frequency of the test cable, whichever is lower.
Cable group
VSWR
I
1.20 +0.025F (F in GHz)
II, IIa, III, IV
1.15 +0.02F (F in GHz)
VI, VIa, VIb
1.15 +0.01F (F in GHz)
Swept frequency VSWR test setup:
Item 6: VSWR shall be less than 1.025 +.002F (F in GHz).
Item 16: VSWR shall be less than 1.025 +.002F (F in GHz).
Second step of VSWR checkout procedure: VSWR shall be less than 1.080 +.005F (F in GHz).
Group B inspection: Use step 5, long cable method.
Qualification and group C inspection: Use step 5, long cable method.
Connector durability: 500 cycles minimum, at 12 cycles per minute, maximum. The connector shall
meet the mating characteristics and force to engage and disengage requirements.
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