Description

Overview

The 3/8 NPT female cross connects four male threaded components through one compact pneumatic junction. Its four equal female ports meet through the centre of the brass body, allowing air to flow between each side of the fitting.

This configuration provides an additional connection compared with a female tee. It suits installations where several valves, adaptors, gauges or threaded air lines need to share a common passage without stacking multiple fittings.

Features

• Four matching 3/8 NPT female threaded ports
• Ports arranged at 90 degrees around a central passage
• Solid brass one-piece body
• Machined outer flats for controlled installation

Specifications and Materials

This No.37 female cross carries four equal 3/8 NPT connections. Each port accepts a male threaded component directly, with no tube nuts, olives or compression inserts required.

Part number: 02N37-06.

See the 3/8 female brass cross technical details

Compatibility and Fitment

Confirm that every mating component uses a 3/8 NPT male thread. The main ordering risks are selecting a three-port tee instead of a four-port cross or confusing NPT with BSP, NPSF or another similar-looking pipe thread.

Check the available clearance around all four sides before assembly. Connected valves or adaptors may need additional space for tightening, and the body should be supported so force applied to one port is not transferred through the remaining connections.

These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. 02-N3703, 02N3703

Compliance and Safety

Depressurise the pneumatic system before removing or installing the cross. Inspect the receiving components for damaged threads, contamination or old sealing material before assembly.

Apply a compatible pneumatic thread sealant to the male threads while keeping excess material away from the internal passage. Tighten each connection progressively, restore pressure gradually and leak-test all four joints before returning the system to service.

Trailer Applications

Trailer and heavy-vehicle workshops fit female crosses where several threaded pneumatic connections need to meet at one point. Typical positions include control-air circuits, gauge connections, valve assemblies, air suspension controls and auxiliary workshop air systems using 3/8 NPT male fittings.

Cross-reference and Suitability

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

Why Choose ICS Trailers

Female crosses can be difficult to distinguish from tees and similar BSP fittings when viewed from one angle. Compare all four ports, the nominal thread size and the old fitting markings, or send clear photos and measurements if the connection needs further identification.

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