The part# 9057 in the earlier trucks (and school bus) was fuel tank hold down strap.
9025 doesn't show up in the "green bible" as it stops in 48. I believe the number is fuel system related.
If your working on a car 8A-9057 is the Fuel Tank Upper Support Assembly Front -LH.
9025 is not listed in the 1949-52 parts book. Like Deuce_roadster said it is part of
the fuel system. It could be part of an assembly like a baffle in the fuel tank that
would not be listed by itself but is part of the fuel tank assembly.
Ford would not show a basic number ( 9025 ) without an explanation such as " serviced in XXXX part". Closest number I find is 9023, which is a tube, air vent used in panel truck gas tanks.