NOV Swivel LB-300 parts listSr. No.DescriptionPart No.Qty.1Oil Seal Ring-Lower | Swivel LB-3006506-0019-0012Oil Seal Ring-Upper | Swivel LB-3006506-0018-0013Rubber Bumper | Swivel LB-3006597-0140-0014Sleeve | Swivel LB-3006507-0013-0015Spacer Ring-Oil Seal | Swivel LB-3006506-0019-0016Gasket | Swive