Description

Overview

The 1/2 x 1/2 NPTF female connector joins 1/2-inch outside-diameter nylon air-brake tubing to a 1/2 NPTF male-threaded connection. Both ends use the same nominal size, but the tube diameter and pipe thread are different measurements. Its straight brass body provides a direct connection without an additional adaptor or elbow.

Features

• Push-in collet grips 1/2-inch OD imperial nylon tubing.
• Internal 1/2 NPTF female pipe thread accepts a matching male connection.
• Brass hexagonal body provides a tightening surface during installation.
• Integrated tube support and sealing ring form the push-in connection without a separate compression nut or olive.

Specifications and Materials

The assembled fitting includes its captive gripping collet, internal tube support and sealing components. The collet can be depressed to release the tubing during servicing. Both connections remain aligned through the straight body, while the female threaded end accepts a compatible male pipe fitting.

Part number: DQ66DOT0808.

See the manufacturer DOT air brake push-in fitting chart

Compatibility and Fitment

Measure the nylon tube across its outside diameter and identify the mating male thread separately. The 1/2 x 1/2 NPTF female connector requires imperial 1/2-inch OD tubing and a matching 1/2 NPTF male connection. Do not substitute 12mm metric tubing or a 1/2 BSP threaded component. Also distinguish this female connector from the externally threaded male version.

These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. 35-660808, 35660808, AQ66-DOT-8X8, AQ66DOT8X8, 1866X8X8, 66PTC-8-8, 66PTC88, S66PMT-8-8, S66PMT88, 95435530M, APB66F8X8, NFP114-8-8, NFP11488, 660808, 02466-0808, 024660808, 266PPDOT-8D, 266PPDOT8D

Related Parts

Compare these alternative connector sizes when the tube diameter or threaded port differs.

Compliance and Safety

The DOT fitting family conforms to ADR 38/05, FMVSS 571.106, SAE J2494/3 and SAE J1131 requirements. Depressurise the circuit before installation. Cut the nylon tubing squarely, remove damaged ends and push fully into the collet. Check tube retention, then repressurise and leak-test both connections.

Trailer Applications

This straight fitting suits compatible truck and trailer air-brake plumbing, suspension air lines and auxiliary pneumatic circuits where 1/2-inch nylon tubing terminates at a 1/2-inch male pipe connection. The push-in arrangement also permits tube replacement without removing the threaded fitting from the equipment.

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 imperial push-in fittings for heavy vehicle pneumatic repairs. If the old connector is unmarked, send its photo, tube outside diameter and male thread details so we can help identify the correct replacement.

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