Small fuse on chassis - size and type? KT-2182F

[Midcoastsurf]

Hello,

I need to order a fuse (3.15A, 250v).  This fuse is a mini fuse, but I am not sure what the length/diameter is.  The wire inside the glass is thin and straight and has two beads positioned at equal points on the wire.  Fast-blow?

I have 3A fuses that are slow-blow and the same size, but wasn't sure if I should be using these in place of the 3.15A fuse.  Here is the data from the manual:

1 50-21X215BDA 215 250V 3.15A

Thanks

[lilshawn]

GMA i believe.

oh, and here:

http://www1.cooperbussmann.com/pdf/7e17b38e-88c4-4159-892d-ba9b51f75907.pdf

[Midcoastsurf]

Yeah, looks like you are right.  5x20mm.

Thanks!