0-9, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, [Contents]

oak block (rail fastening) USE wood key
oak key USE wood key
observation car
obtuse crossing
occupation box
occupation bridge
occupation crossing USE occupation level crossing
occupation level crossing
<occupation protection equipment>
OCS panel USE one control switch panel
officers saloon
offside cab door close control
<off-track motive power>
OHLM inspection car
oil axle box USE oil axlebox
oil axlebox
oil burner
oil dispenser
oil engined locomotive
oil feeder can
oil filter
oil fired locomotive
oil jug
oil pad
oil tank wagon
oil tank wagon (departmental)
oil tank (locomotive)
oil trimming
omnibus wagon
on/off indicator
one control switch panel
one person operated train
on track self propelled tamping machine USE tamper (vehicle)
<on-train automatic train protection equipment>
<on-train communications equipment>
<on-train electro-magnetic brake tripping devices>
<on-train mechanical brake tripping devices>
<on-train signals>
<on-train tools and equipment>
open carriage
open carriage truck
open container
open crossing USE open level crossing
open goods wagon
open level crossing
open merchandise wagon USE open goods wagon
open section detonator
open spoked wheel
open vehicle
<open vehicles by height>
<open vehicles by shape of load space>
open wagon
open (coach) USE open carriage
operating cab
operating rod (regulator) USE regulator operating rod
operating train
operators control unit
operators vigilance alarm test
optical locating bar
ordinary return ticket USE ordinary ticket PLUS return ticket
ordinary ticket
Orenstein valve gear
ornamental locomotive
<other internal combustion locomotives>
<other non-revenue operating stock>
<other special traffic vehicles>
outer advanced starter
outer home signal
outside connecting rod
outside cylinder locomotive
overbridge
overhead crossing
overhead electric railway
overhead electrification vehicle
overhead line
overhead line electric railway
overhead line equipment
overhead line insulator
overhead line maintenance cable drum carrier
<overhead power collection components>
overhead railway
<overhead structure maintenance vehicles>
overhead turnout
overhead wire
overhead wire collection locomotive
overlay track circuit
overload protection
overload trip and test indicator
owners identity plate
<owners identity plates>
owners number plate USE number plate
owners plate USE ownership plate
<ownership markers>
ownership plate

0-9, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, [Contents]