-OUTER DIAMETER: 4 1/2 X 5 1/2 IN. -WEIGHT: 12.75 X 23.00 LB/FT. -MATERIAL: CARBON STEEL. -STANDARD AND GRADE: API 5CT N80. -LENGTH: 1 FT. -CONNECTION TYPE: EUE PIN X BOX LTC.
A combination nipple is a specialized oilfield fitting that combines multiple connection types (e.g., threaded, flanged, or welded ends) into a single component. It facilitates transitions between different pipe sizes or standards in wellhead and pipeline systems.