These are the dimensions:
Reverb springs
Spring wrapping around post (4)
Diameter: 0.26 in
Height: 3/4 in
Wire dia: 1.35 mm / 0.053 in / 3/64 in
Tank-to-spring spring (4)
Diameter: 0.26 in
Height: 0.65 in
Height with loops: 1.0720" 1 5/64"
Wire dia: 0.9 mm / 0.0355 in / 1/32 in
And here are a couple of photos of what they look like disassembled from the unit:
