Specification Brand : Midland BulletPoint1 : Type a: the original style a o-ring has no retaining ledge BulletPoint2 : Type b: the type b groove has a retaining ledge BulletPoint3 : Npsm fittings include an inverted 60° cone inside an internally threaded swivel union nut ItemName : Midland FS2500-4-4 Steel Hydraulics ORFS Union 90degree Elbow, 9/16"-18 Face Seal Thread x 9/16"-18 Face Seal Thread ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 2 inches ItemPackageDimensions_Width : 2 inches ItemPackageQuantity : 1 ItemTypeKeyword : compression-elbow-fittings Manufacturer : Midland Metal Mfg. Material : Steel ModelNumber : FS2500-4-4 NumberOfItems : 1 PartNumber : FS2500-4-4 ProductSiteLaunchDate : 2016-03-24T02:30:35.476Z Size : 9/16"-18 Face Seal Thread x 9/16"-18 Face Seal Thread StreetDate : 2018-05-31T00:00:01Z SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 40141734