| Class NN wagons are various types of wagons that were reclassified for use in non-revenue service. This DZ (type 1) dropside open wagon entered service between 1935 and 1978 and has been converted to a bulkhead flat wagon by removing the side doors. Some have the stanchions still in place. The type 2 wagons have channel iron outside braces on their bulkheads.Number Range (observed) 94 500 002 to 94 503 990, Length between couplers 14.752m, Length over headstocks 13.868m, Length between bogie pivot centres 10.058m, Height 2.206m, Width 2.426m, Tare (average) 19,910kg, Load 44,000kg, Floor area 33.8m2, Capacity 31.0m3. |