Keysight NFA Series Performance Verification And Calibration Manual page 29

Table 1-3
Preparing for Calibration and Performance Verification Test
Recommended Torque Settings
Type Description
Precision 12 lb-in (136 N-cm.)
7mm
Precision 8 lb-in (90 N-cm)
3.5mm
SMA 5 lb-in (56 N-cm) Use the SMA wrench to connect male
SMA connectors to female precision 3.5min connectors.
Connections of male precision 3.5mm. connectors to female
SMA connectors can be made with the precision 3.5mm
torque wrench (8 lb-in).
Type-N Type-N connectors may be connected finger tight. If a
torque wrench is used, 12 lb-in (136 N-cm) is
recommended.
Chapter 1
Recommended Test Equipment
9