This SAE Aerospace Standard (AS) establishes the requirements for fluid fittings that combine both straight thread port or flanged connections@ and 24 degree cone flareless connections for use in all types of fluid systems. Classification Fittings shall be furnished in the types and styles designated by the applicable MS@ AS and other engineering standard drawings. This specification is the same as MIL-F-18280 as applicable to straight thread port or flanged to 24 degree cone flareless tube fittings except for updated materials and process specifications and industry coordinated general improvements. It is intended to serve as a procurement specification for the fittings described herein and in Section 6.