This coding system is intended to provide a convenient means of identifying the various tube, pipe, hydraulic hose type and hose fittings, not intended for use in aircraft, and of transmitting technical or engineering information relating to them wherever drawings or other pictorial media may not be readily available. The code has been kept flexible to permit expansion to cover new fitting categories or styles and, if the need develops, the inclusion of materials. The system is also compatible with automatic data processing equipment.It is not intended that this code should supersede established systems or means of identification. However, because the SAE code for automotive flare fittings shown in SAE J512 is also applicable to corresponding refrigeration fittings in SAE J513, both an SAE code and the existing code ANSI B70.1 are included throughout SAE J513. Therefore, it should be the prerogative of the user to apply that code which best satisfies his requirements.This revision to J846 is to add fitting type codes and fitting shape codes used in J1754-2 & SAE J1754-3 for ordering information. Added a new Table 9 to separate the hose fitting attachment type from the descriptions in Tables 6A and 6B and removed the redundant codes. Revised SAE J1926 codes to remove the relationship of ISO11926 and made other miscellaneous description improvements to J846. NOTE: This draft of J846 revisions needs to be coordinated with the adoption of S2-J1754-1&2-05-1, S2-J1754-3-06-01 and S2-J516-06-01 project revisions.