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 NeckAb sciex API 5000 LCMSMS Pdf User Manuals. View on or download Ab sciex API 5000 LCMSMS Hardware Manual