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03BT-03BT TUBE UNION STRAIGHT

Description & Features

The 03BT-03BT Tube Union Straight by Brennan Industries Inc offers a reliable and efficient connection solution for various industrial applications. This straight union features a B1 and B2 drill of 0.125 ensuring precise alignment and secure attachment.

Crafted with a 3/16 tube O.D. it seamlessly integrates into existing setups. The union comes with a 3/8-24 B1 thread and a 0.438 C hex providing compatibility and ease of use.

The series C2403 union has K1 and K2 depths of 0.234 with an overall length of 1.11 making it suitable for compact installations where space is a constraint.

Engineered for optimal performance the 03BT-03BT Tube Union Straight is designed to support critical operations in various sectors ensuring durability and longevity in demanding environments.

Supplier Part Number: C2403-03-03

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number C2403-03-03	Product Weight 0.06 lbs

Product Questions & Answers (3)

Question by: Eddie D on Dec 30, 2025, 6:54 PM

Got a line running 3/16 tube and need a straight union to tie two sections together, this the right part for that?

Answer by: Customer Support on Jan 1, 2026, 8:39 AM

For 3/16 O.D. tube, yes, that's exactly what this fitting is built around. The C2403-03-03 is a straight union, so it connects two tube ends inline without any change in direction. Both sides share the same 3/8-24 thread and 0.125 drill, so you're getting a symmetric connection on each end. Overall length comes in at 1.11 inches, which keeps things fairly compact if space is tight in your setup.

Question by: Denise W on Feb 21, 2026, 3:47 PM

trying to swap out a straight tube union, is this one set up for 3/16 tube or am i lookin at the wrong size

Answer by: Customer Support on Feb 22, 2026, 8:52 PM

The key callout is the tube O.D. It is sized for 3/16 inch tube O.D., and this C2403-03-03 union also uses 3/8-24 threads with a 0.438 inch hex.

Question by: Warren W on Dec 25, 2025, 7:08 PM

What size tubing does this union work with?

Answer by: Customer Support on Dec 27, 2025, 7:53 AM

This tube union straight is made for 3/16 inch outer diameter tubing.