api 5000*Tolerances and ring gaskets are according to API 6A. Materials for API 6A Type 6B 5000 psi(34.5 MPa) Weld Neck RTJ Flange, API 6A 6B Weld NeckThis AB Sciex API 5000 Triple Quad LCMSMS comes expertly refurbished from GenTech Scientific. Condition: Refurbished. Model: 5000. OEM: AB Sciex. Full-Service Reseller.