Description

Overview

The 3/4 x 1/2 NPT male connector joins 3/4-inch outside-diameter nylon air-brake tubing to a 1/2-inch NPTF female port. Its straight brass body connects the air line directly to compatible valves, manifolds and pneumatic equipment without a separate compression nut or olive.

Features

• Push-in connection accepts 3/4-inch (19.05mm) OD nylon tubing.
• 1/2-inch NPTF tapered male pipe thread.
• Integrated tube grip and reusable release collet.
• Brass hexagonal body provides a tightening surface.

Specifications and Materials

This DOT push-to-connect fitting combines a brass body, internal tube seal and release collet. The push-in end grips the tube by its outside diameter, while the male threaded end connects to a matching female pipe port. No separate compression sleeve or tube nut is required.

Part number: 88-003-1208.

See the manufacturer DOT male connector specifications

Compatibility and Fitment

Confirm the nylon tube measures 3/4 inch across its outside diameter and the receiving port accepts a 1/2 NPTF male thread. Do not confuse 3/4-inch tubing with smaller imperial or metric sizes. When replacing a 3/4 x 1/2 NPT male connector, also check the thread standard and allow sufficient clearance for straight tube entry.

These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes.

DQ68DOT1208, 35-681208, 35681208, 1868X12, 1168X12X8, 681208, 02468-1208, 024681208, 121018.81, 12101881, 268PC-12×8, 268PC12X8, 268PPDOT-12D, 268PPDOT12D, 268PPDOT-12D-Y, 268PPDOT12DY, 441618, 68PMT-12-8, 68PMT128, 87052, 91309, 95453049M, 968-128, 968128, 968-12-8PXDOT, 968128PXDOT, AQ68-DOT-12X8, AQ68DOT12X8, D7068DT12D, D7068DT-12D, DQ68-128, DQ68128, NP68-12-8, NP68128, PC146812D, PC1468-12D, PL136812D, PL-1368-12D, PP68J-DOT, PP68JDOT, S68PMT-12-8, S68PMT128

Related Parts

Compare these alternative connections when the tube size, thread or routing differs.

Compliance and Safety

Depressurise the air circuit before installation. Cut the nylon tube squarely, remove damaged ends and push it fully into the collet. Follow the correct tapered-thread sealing and tightening procedure. Then restore pressure and leak-test both connections, checking tube retention before returning the system to service.

Trailer Applications

Workshops fit these connectors to compatible trailer brake valves, air suspension controls and auxiliary pneumatic equipment. The straight configuration suits larger 3/4-inch nylon air lines terminating at 1/2 NPTF ports.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

Why Choose ICS Trailers

ICS Trailers supplies push-in fittings and nylon air tubing for heavy vehicle pneumatic repairs. If the old fitting has worn markings, provide its tube diameter, thread measurements and a photo so our team can help identify the correct replacement.

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