Product Description
Secure unused hydraulic ports the right way with the PSC H0304-C-06 CAP NUT, #6. This premium steel cap nut is designed for hydraulic steering and fluid transfer applications that require a dependable seal on a #6 JIC female-thread connection. Finished in zinc for added corrosion resistance, the H0304-C-06 is an ideal choice for capping steering gear ports, assist cylinder fittings, hose ends, and other high-pressure hydraulic service points during installs, repairs, storage, or system changes. Rated for demanding use, this PSC cap nut helps prevent fluid loss, contamination, and damage to open ports while keeping your steering system clean and protected. Built for reliability in performance steering environments, the PSC H0304-C-06 is a simple but critical component for clean plumbing and professional-grade system assembly. Whether you are finishing a custom hydraulic steering setup, servicing a PSC steering system, or sealing an unused fitting during transport or storage, this cap nut delivers the quality and fitment expected from PSC Steering Components.
Fitment
- Universal fit for hydraulic and steering systems using a #6 JIC / 3/8 in. JIC 37-degree female-thread port
- Commonly used on PSC steering systems, hose assemblies, steering assist components, and related hydraulic plumbing
- Ideal for capping unused fluid ports during installation, service, storage, or system reconfiguration
- For use in custom off-road, rock crawler, truck, Jeep, and performance steering applications where a #6 JIC cap is required
Specifications for PSC H0304-C-06
| Specification | Details |
|---|---|
| Brand | PSC Steering Components |
| Part Number | H0304-C-06 |
| Type | Flared Cap / Cap Fitting |
| Fitting Size | #6 JIC / 3/8 in. JIC 37-degree |
| Thread / Attachment | Female Threads |
| Material | Steel |
| Finish | Zinc |
| Working Pressure | 4000 PSI |
| Length | 0.63 in. |
| Product Weight | 0.05 lb |
| UPC | 687927185197 |
| GTIN | 687927185197 |
| Shipping Info | Calculated at checkout |
| Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
FAQ
What does the PSC H0304-C-06 cap nut fit?
This cap nut fits #6 JIC / 3/8-inch JIC 37-degree female-thread applications commonly found in hydraulic steering and fluid transfer systems.
What is this cap nut used for?
It is used to cap and protect open hydraulic ports or fittings, helping prevent fluid leaks and contamination during service, transport, storage, or system changes.
Is the PSC H0304-C-06 made from steel?
Yes. PSC lists this cap fitting as a steel unit with a zinc finish for durability and corrosion resistance.
Can this be used on performance steering systems?
Yes. This cap nut is well-suited for PSC steering systems, hydraulic assist setups, off-road steering plumbing, and other custom hydraulic applications that use a #6 JIC fitting.
Does Prop 65 apply to this part?
Yes. Retail listings for this part include a California Prop 65 warning.
