Sales Lot numbers and Unique serial number to segregate item with different weight in same lot numb

Dear Team,

There is requirement to use the lot Number for item No A. in item A there are 100 quantity in Lot Number 1920/0002.

In this lot each item has got different weight. and pricing done on the basis of weight.

is there any field where i segregate the lot of 100 quantity with serial number on each

Thanks,

Satyam