4O - UNO MALE PLUG
4O - UNO MALE PLUG - 3/8" UNO is backordered and will ship as soon as it is back in stock.
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📏 Find Your Thread Size
📏 Find Your Thread Size
Not sure if it’s BSPP, JIC, or NPT? We’ve got you covered.
Whether you're matching a 3" BSP Brass Ball Valve or identifying a hydraulic hose fitting, our thread chart makes the guesswork easy. Just grab a set of calipers (or even a tape measure), compare your fitting against our chart, and in most cases — boom — you’ll know exactly what thread you’ve got.
Still unsure? No worries. Snap a photo or two, send us the measurements, and we’ll help you confirm the thread so you can order with confidence.
💪 Built to Last Promise
💪 Built to Last Promise
Products we trust. Quality you can count on.
Every hose, fitting, clamp, valve and accessory we supply is carefully selected, used in our own workshop, and backed by our reputation for reliability. We don’t sell anything we wouldn’t use ourselves.
✔️ We crimp every hose assembly in-house for full quality control
✔️ We source only from trusted brands we’d stake our name on
✔️ We offer a no-fuss 2-year warranty on our hose assemblies
✔️ Most fittings, clamps and accessories carry manufacturer warranties from 12 months up to 10 years
Whether it’s under pressure or in harsh environments, our gear is built to last — and delivered fast.
🚚 Fast, Flexible Shipping
🚚 Fast, Flexible Shipping
Australia-wide delivery with options to suit your jobsite and your deadline.
Whether it’s a single hose or a pallet of fittings, we’ll get it to you fast — with flexible options for critical and non-critical needs.
✔️ We ship Australia-wide — satchels, cartons & pallets
✔️ Delivery typically takes 1–10 business days, depending on your location
✔️ Urgent order? Priority freight options available at checkout
✔️ Some items may ship direct from our supply partners to speed up delivery
✔️ Tracking details provided once your order is dispatched
Need it fast or want to organise your own freight? Let us know — we’re here to help.
Description
Description
TYPE:
Threaded Plug UNO (ORB) Male
DESCRIPTION:
The 4O is a UNO male plug, also known as an ORB (O-Ring Boss) plug, designed to seal SAE J1926 straight-threaded hydraulic ports. The plug uses a face-sealing O-ring to provide a leak-free seal and is ideal for use in valve bodies, cylinder heads, and power units.
COMMON APPLICATIONS:
- Blanking off ORB ports during testing, maintenance, or system shutdown
SUITS THESE MACHINES:
- SAE-standard equipment including CAT, John Deere, Case, and custom skids
THREAD & SEAL DETAILS:
- ORB (UNO): SAE J1926 UNF thread, seals with O-ring in port face
Need to seal an ORB port? This UNO plug gives you SAE-standard protection with leak-free sealing.
BUILT TO LAST, DELIVERED FAST.
Payment & Security
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