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4MFS-4FFSS STRT W/ 4FORB TAP HEX FLAT

Description & Features

The Brennan Industries Inc 4MFS-4FFSS STRT W/ 4FORB TAP HEX FLAT is an essential component for industrial applications requiring reliable and precise connections. Designed for efficiency and durability this adapter features a 0.172 drill diameter with 9/16-18 threading. The branch tee integrates a gauge port facilitating essential monitoring capabilities.

The C Hex dimension of 0.687 and a H Hex of 1.062 ensures robust performance under demanding conditions. The straight adapter is crafted with a specific series FS6564 adheres to rigorous standards and guarantees compatibility with 7/16-20 SAE ORB fittings.

It supports a tube outer diameter of 1/4 making it suitable for various flow control needs. This component's construction quality meets industrial requirements ensuring reliability and performance.

Supplier Part Number: FS6564-04-04-04

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number FS6564-04-04-04	Product Weight 1.00 lbs

Product Questions & Answers (3)

Question by: Dale R on Oct 31, 2025, 1:51 PM

got a gauge port tee with 9/16-18 threads, is this the same deal or am i off a size?

Answer by: Customer Support on Nov 2, 2025, 11:11 AM

For thread match, the A and B ends on this part are both 9/16-18, and the drill size on both sides is listed as 0.172. It is a branch tee style that includes a gauge port.

Question by: Sheila C on Jul 8, 2025, 4:53 PM

got a 1/4 inch tube line running off a hydraulic block and need to tap in a gauge port without adding a bunch of extra fittings. this piece do that in one shot?

Answer by: Customer Support on Jul 10, 2025, 11:31 AM

That's exactly what this fitting handles. It's a branch tee configuration that combines a straight adapter with a built-in gauge port tap, so you're not stacking multiple fittings to accomplish the same thing. The SAE ORB port on the branch is 7/16-20, which is a common gauge connection size. The main line runs 9/16-18 threads on both the male and female ends, and the tube OD it's built for is 1/4 inch. One fitting, one installation, gauge port already there.

Question by: Earl S on Apr 29, 2025, 4:26 PM

Wondering what size drill and thread this branch tee uses for the gauge port?

Answer by: Customer Support on May 1, 2025, 12:03 PM

For the gauge port on this branch tee, you're looking at a 0.172 drill diameter and 9/16-18 threading.