John Deere Original Equipment Sleeve (20-PACK) - A20648 This includes 20 Sleeve A20648's The part specifications for A20648: Part Number: A20648 Part Name: Sleeve Inside Diameter(IN): 1.5460 Outside Diameter(IN): 1.7500 Length(IN): 8.4200 Material(ALPHA): A27A Finish(ALPHA): This A20648 Sleeve fits these models: 210 Disk 215 and 215 Dura-Cushion Disks 220 Power-Flex Center-Fold Disk 225 Series, Wheel-Type Offset Disk Harrow 230 Power-Flex Wing-Fold Disk 235 Center-Fold Disk 235 Wing-Fold Disk 621 Tandem Disk 627 Disk 630 Tandem Disk 630, 655 and 660 Integral Disk Harrows (North American) 637 Disk 710 Mulch Tiller 712 Mulch Tiller 714 Mulch Tiller This is an OEM John Deere part.