Description

Overview

The 5/16 x 3/8 NPT hose barb connects flexible hose with a 5/16″ internal diameter to a female 3/8 NPT threaded port. Its straight brass body combines a ribbed hose tail, installation hex and tapered male thread in one compact fitting. This layout suits hose-to-port connections where a separate adaptor would add unnecessary joints.

Features

• 5/16″ barb matches compatible hose by internal diameter
• 3/8 NPT male thread connects to a matching female port
• Multiple barb ribs provide contact along the inserted hose end
• Hex shoulder gives a defined surface for tightening the fitting

Specifications and Materials

Configuration: straight male hose barb.

Hose connection: 5/16″ internal-diameter hose.

Thread connection: 3/8 NPT male.

Material: brass.

Part number: 06-203-0506.

See the Parker brass hose barb fitting guide for general hose connection and retention guidance

Compatibility and Fitment

Confirm both connection standards before ordering. The barb size refers to hose internal diameter, while the threaded end requires a 3/8 NPT female port. A visually similar 3/8 BSP fitting is not the same thread and should not be forced into the port. Cut the hose square, push it fully across the ribbed section and secure it with a clamp or crimped ferrule suited to the hose and operating conditions.

These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. GP-570-0506, GP5700506

Compliance and Safety

Depressurise and drain the system before removing or installing the fitting. Apply thread sealant that suits NPT threads and the conveyed medium, keeping excess material away from the internal passage. Hold the hex with the correct tool rather than gripping the barb. After assembly, restore pressure gradually and inspect the threaded port and hose connection for leakage or movement.

Trailer Applications

This 5/16 x 3/8 NPT hose barb suits compatible air, fuel and water hose circuits on trucks, trailers, workshop equipment and general machinery. It provides a direct connection where a 5/16″ flexible hose terminates at a 3/8 NPT female port. Confirm the hose material, clamp type, temperature and pressure suitability for the specific system before use.

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 brass hose tails, threaded adaptors, clamps and pneumatic fittings for heavy vehicle and workshop repairs. If an existing fitting has no readable markings, compare the hose bore, thread diameter, thread type and body configuration before ordering.

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