Description
DOMETIC SEASTAR 3/8 Inch Closing Nut, 3-Pack – HF5524
The Dometic SeaStar HF5524 is a 3/8 inch closing nut kit used to cap or close compatible compression fitting ends in SeaStar and Teleflex marine hydraulic steering systems. It is commonly used during installation, service, or when protecting unused hydraulic tube connections.
This fitting should be selected by the required fitting style, tube size, and pipe/port size, not by appearance alone. For steering system safety, verify compatibility with the helm, cylinder, and hydraulic line type before installation.
Main Features
- Designed for SeaStar manual hydraulic steering systems using compatible tube and pipe sizes.
- Useful for repairs, service, or custom hydraulic line routing where the listed fitting type is required.
- Marine hydraulic fitting intended to maintain secure, leak-resistant steering connections.
- Always match pipe size, tube size, and cylinder/helm generation before installation.
- Do not substitute NPT fittings into ORB-style -3/-4 helms or cylinders unless the service manual specifically allows it.
What’s in the Box
- Three 3/8 in. closing nuts.
Specifications
- Manufacturer Part Number: HF5524
- Product Type: 3/8 Inch Closing Nut, 3-Pack
- Fitting Type: Closing nut / cap plug nut
- Tube Size: 3/8 in.
- Thread: 9/16-24 extra fine
- Material: Brass
- Package Quantity: 3 per kit
- UPC: 731957802675

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