While there is a glyph like that there's no nice way to access it. There is no font feature to enable slashedzero by default and slashedzero is not mapped to U+0030 U+FE00 (Unicode's standard variant for an explicit slashed zero). Instead it's only accessible using the private use codepoint U+E007 and then typically doesn't get copied as a regular zero.

But more generally the font has an empty GSUB table which would be used for such substitutions. I'm wondering if the cockpit display maybe misses support for that and that's why they tried not to use it for anything.