SAE Standards Works
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
AS6231 - COUPLING, TUBE-WELDING
Not available for purchase at this time.
Pedro Javier Perez
This SAE Aerospace Standard (AS) establishes the dimensional and material requirements for weld on machined spherical end fluid connection fittings. These are new fittings that are typically used on aircraft engine applications and are not replacing AN, AS, MS, NAS, or other industry standard drawings. The coupling part standard uses the AS5449 fitting weld end and AS5309 spherical fitting end design standards, the design standard for the weld end, AS5449 is designed for auto-welding. The design standard for the spherical sealing surface, AS5309 is designed for improved leak resistance at high pressure. These fittings are also design to meet the fatigue requirements for aircraft engine applications. Reference AS4841 (MIL-F-5509) procurement specification.
This SAE Aerospace Standard is intended to provide technical and dimensional requirements for a new straight coupling defined by AS5449 fitting weld end and AS5309 spherical fitting end design standards.