SECTOR READER

sr [-o] s1 [s2 ...]

This will read one or more sectors directly from the floppy disk (this is
different from reading the cached sector files in your ~/sectors directory).
This command uses dd to read the raw contents of the drive and hexdump to
display it.

You can achieve the same effect by using the following command:
dd if=/floppy bs=512 count=1 skip=sector_number | hexdump -C

-o     Print to stdout instead of a pager