Here's what Racer Parts Wholesale had to say:
"The FC5898 number refers to the color only. The FC332 is the blue
socketless hose. If you look on the hose it will also be labelled as
-10.
The hose must be cut square and the fitting pressed into the hose
until it bottoms under the collar. Do not use hose clamps."
So if you don't use clamps then you worry about the hose slipping off. If you do use clamps you worry about the inner hose getting messed up.
