Part number for stapler

[davidj7]

Hi I have K1 finisher for 105 and 8500 series machines. The finisher comes with stapler unit loaded for G1 staples which can hold 100 sheets.There is another stapler for these machines which can hold E1 pins and staple 50 sheets.Does any one has the part # for the 50 pin staple unit
thanks

[mujibur]

part nomber ir8500 stpler fg67486-000