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

Item No	Models
325	LittleMachineShop.com 3536 HiTorque Bench Lathe - 8.5x16 LittleMachineShop.com 3540 HiTorque Bench Lathe - 8.5x20 Various SC4-US SIEG Bench Lathe Travers Tools OT218410 OTMT Bench Lathe - 8.5x16 LittleMachineShop.com 7500 HiTorque Bench Lathe - 8.5x20
49	LittleMachineShop.com 4100 HiTorque Mini Lathe - 7x12 LittleMachineShop.com 5100 HiTorque Mini Lathe - 7x16 Various SC2-US SIEG Mini Lathe LittleMachineShop.com 7350 HiTorque Mini Lathe - 7x16 Micro-Mark 84631 MicroLux Mini Lathe - 7x16
77	LittleMachineShop.com 7450 HiTorque Mini Lathe - 7x16

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