MIL-STD 348B BNC Dimensions

[Jack Smith-6]

MIL-STD 348B (3 Feb 2009 edition) contains the reference dimensions for
RF connectors meeting US military specifications.

The center pin diameter for 50 and 75 ohm BNC male connectors are
defined in figures 16 and 85 respectively. In both drawings, dimension
"D" is the pin diameter and is (min) 0.052" [1.32mm] / (max) 0.054"
[1.37mm] diameter in both Figures 16 and 85.

In the absence of definitive information to the contrary, this should
remove any doubt that 50 and 75 ohm BNC center pin diameters are
identical, at least if they are made according to MIL-STD 348B.

Some offshore manufacturers seem to regard specifications are advisory,
not mandatory, of course.

Jack K8ZOA

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