Light Grey FS 36495 vs USAF Light Gray

How close are they?

ΔE 6.1, close: similar, with a visible difference side by side. USAF Light Gray is a little darker than Light Grey FS 36495.

✓ AK 3rd Generation equivalence chart lists these two as equivalents.

Can I use USAF Light Gray instead of Light Grey FS 36495?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). USAF Light Gray is a little darker than Light Grey FS 36495.

Can I use Light Grey FS 36495 instead of USAF Light Gray?

The same difference applies the other way round: Light Grey FS 36495 is a little lighter.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.