/usr/lib/dvi2ps/fontsk/n2a is in dvi2ps 5.1j-1.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | # NTT dvi (subfont) -> pTeX / ASCII dvi
font comp * 0 dm,ntt
font comp * 0 dg,ntt
# virtual font
font jvf * 0 $tmf/$vf/conv//n2a/
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