To locate the part number you need to find a number that looks like FRU XXXXXXX (i.e. FRU 02K6630). It typically appears to have the FRU (Field Replacement Unit) in front of it followed by two digits, a letter, and four digits.

            You can also locate the part number by finding a similar number that looks like

ASM XXXXXXX (i.e. ASM 02K6631).

ASMs are usually somewhat cheaper than FRUs because they come from the manufacturer due to overstocking or the website has more refurbished parts that are listed with ASM numbers.