Those relay connector numbers are completely dependant on the relay. Usually there is some kind of markings on the bottom of a relay to give you a hint, or something embossed into the plastic.

you can always take a multimeter to it - first find the coil (just measure resistance between every pin and map it out). 0 ohms is the normally closed, close to 0 ohms is the coil. Once you know which is the coil, you can power it off and on, measuring the resistance of the remaining pins to figure out the normally open/normally closed ones.

Maybe hit google with the part number, you might get lucky and save some work there.

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