Straight Hose Barb 3/8 x 1/8 NPT Air Fitting
Allan Davis
on
17/07/2026
Straight Hose Barb 3/8 x 1/8 NPT Air Fitting
$7.00
Straight brass hose barb with a 3/8″ hose connection, 1/8 NPT male thread and installation hex for joining compatible flexible hose to a female threaded port in truck, trailer and workshop pneumatic systems.
Part number 06-203-0602.
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Description
Overview
The 3/8 x 1/8 NPT hose barb connects flexible hose with a 3/8″ internal diameter to a female 1/8 NPT port. Its straight brass body combines a ribbed hose tail, central hex and tapered male thread, creating a compact hose-to-port connection without a separate adaptor.
Features
- 3/8″ barb matches compatible hose by internal diameter
- 1/8 NPT male thread connects to a matching female port
- Ribbed tail supports retention with a suitable hose clamp
- Hex shoulder provides a defined surface for tightening
Specifications and Materials
Configuration: straight male hose barb.
Hose connection: 3/8″ internal-diameter hose.
Thread connection: 1/8 NPT male.
Material: brass.
Part number: 06-203-0602.
See the Parker brass hose barb fitting range for general barb, thread and hose retention guidance
Compatibility and Fitment
Check both connections independently. The barb size refers to hose internal diameter, while the threaded side must enter a 1/8 NPT female port. Do not select the barb from the hose outside diameter or force the tapered NPT thread into a BSP port. Cut the hose square, push it fully over the ribs and secure it with a clamp or crimped ferrule suited to the hose.
These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. GP-570-0602, GP5700602
Compliance and Safety
Depressurise and drain the system before removing or installing the fitting. Apply compatible thread sealant to the male NPT thread while keeping excess material away from the passage. Tighten through the hex rather than gripping the barb. Restore pressure gradually, then inspect the thread and hose connection for leaks or movement.
Trailer Applications
The 3/8 x 1/8 NPT hose barb suits compatible pneumatic and general fluid circuits on trucks, trailers, workshop equipment and machinery. It provides a direct transition where 3/8″ flexible hose terminates at a small 1/8 NPT port, including valve, regulator, gauge and accessory connections where all component ratings match the system.
Cross-reference and Suitability
This part cross-references to or suits the following equivalent part numbers and compatible alternatives:
| GP-570-0602 | GP5700602 |
Why Choose ICS Trailers
ICS Trailers supplies brass hose tails, threaded adaptors, clamps and pneumatic fittings for heavy vehicle repairs. When replacing an unmarked fitting, compare the hose bore, thread type, thread size and body configuration before ordering.
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