SAE J514 JIC tube fitting is designated by the word “Connector”, followed by ISO 8434-2, followed by a space, then the connector style letter symbols.
The jic fittings letter symbol designation of the connector style shall have three parts: 1) the connection end type immediately followed by 2) the shape of the connector and 3) by the indication that a complete connector is being ordered. The letters A and B shall be used to distinguish different styles, where such options exist.
Tube ends are assumed to be male and thus do not need to be included in the connection type code. However, if another type of end type is involved, it shall be designated.
Reducing connectors and elbows shall be designated by specifying the larger tube end first.
Stud connectors shall be designated by specifying the tube end first, then the thread size for the stud end.
For tee connectors, the order of designation of the connection ends shall be from the larger to the smaller tube end on the run, followed by the branch end.
For cross connectors, the order of designation of the connection ends shall be from left to right, followed by from top to bottom, with the larger ends on the left and at the top.
The following letter symbols shall be used:
Connection end type Letter
Bulkhead BH
Swivel SW
Reducer RD
Stud SD
Shape Letter
Straight S
Elbow E
45° elbow E45
Tee T
Run tee RT
Branch tee BT
Cross K
Long L
Component type Letter
Nut N
Sleeve SL
Locknut LN
Plug PL
Cap CP
Nipple NP
Metric M
Inch I
Completeness indication Letter
Complete connector C
Stud end sealing types Letter
Metal-to-metal sealing B
Elastomeric sealing E
O-ring sealing F
Examples of 37° flared connectors and designations are given in Figures 2 and 3.
EXAMPLE A straight stud connector (SDS), including O-ring without sleeve and nut, for use with 12 mm OD tubing with an 3/4-16 UNF stud end in accordance with ISO 11962-3 is designated for ordering as follows: Connector ISO 8434-2 SDS-12× ×3/4-16
