This part is the replacement rack guide nut for your range. It is made of metal and is sold individually. The rack guide nut helps secure the rack guide screw. The main reason you would need to replace this part is if it is badly stripped or if the nut itself is missing. This is an authentic OEM part sourced directly from the manufacturer.
Home Depot Number: HD8753382
Manufacturer Part Number#:
WB01X21270
Manufactured by:
GE
for General Electric
Why buy the real thing?
OEM stands for Original Equipment Manufacturer. Simply put, this means that the company who made your appliance is also supplying the replacement part for it.