In your instruction manual, this part appears on the parts list as:

Item No	Models
136	LittleMachineShop.com 7450 HiTorque Mini Lathe - 7x16
247	Micro-Mark 82710 MicroLux Mini Lathe - 7x14
347	LittleMachineShop.com 4959 SIEG Mini Lathe - 7x14 (C3) Various C3-US SIEG Mini Lathe - 7x14
90	LittleMachineShop.com 4100 HiTorque Mini Lathe - 7x12 LittleMachineShop.com 4200 HiTorque Mini Lathe - 7x12 LittleMachineShop.com 5100 HiTorque Mini Lathe - 7x16 LittleMachineshop.com 5200 HiTorque Mini Lathe - 7x16 Various SC2-US SIEG Mini Lathe LittleMachineShop.com 7300 HiTorque Mini Lathe - 7x16 LittleMachineShop.com 7350 HiTorque Mini Lathe - 7x16 Micro-Mark 84631 MicroLux Mini Lathe - 7x16

Click your model to see the complete parts list.