G7167A multisampler wash port tubing connection

 is there anyone know the part number, of this tubing connected from the peripump to the wash port assembly? I accidentally crush it when I change the rotor seal, didn't realise the tubing sit behind the ring in the injection valve. I thought this waste tubing is the same as the needle seat but then when I take it out there is ring and nut attached to the tubing. is there a part number for this tubing or I have to order the nut and ring separately?

Thanks

Candy

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