GP6400-12-12-04FB Tompkins JIC-to-O-Ring Gauge Port, -04 SAE O-Ring Port

GP6400-12-12-04FB is the 12/12 nominal-size member of Tompkins' GP6400 family, combining a JIC-to-O-ring fitting layout with a dedicated -04 SAE O-ring port for pressure-gauge access.

The GP6400 family is the JIC-to-O-ring branch of the range, pairing a JIC connection with an O-ring connection on the main fitting path. The FB designation matters here: this model's gauge takeoff is 7/16-20 female O-ring, not the female pipe style offered elsewhere in the same family.

This model uses matching nominal size 12 connections on the primary path; nearby part numbers step that size up or down.

The specification table below provides the final check for family, gauge-port type, and both nominal connection sizes.