High-Quality Galvanized Brass JIC Iron Metric Carbon Steel Sleeve Cone Raw Rubber Ferrules for Hydraulic Systems

We've been shiping these ferrule assemblies for a while now, and what it does is handle the connection between hose and fitting in high-pressure hydraulic systems — they're basically a sleeve cone with a raw rubber core that compresses under the JIC or NPT threads for a tight seal, and the zinc plating is pretty standard for corrosion resisance but you'll want to avoid using them in highly acidic environments or with certain brake fluids since the rubber composition isn't universal.

Most buyers go with the 1/2" size for general equipement repairs, but sizes run from 1/4" to 2" depending on your hose diameter, and we usually stock the silver finish in the 3/8" and 1/2" range while the yellow zinc takes a week or so longer because of that it's less common. It's basically a stainlss steel or carbon steel ferrule with a female connection and round head design, and the thread options are JIC, NPT, or BSP — just confirm with the TDS before ordering because mixing threads can ruin the seal.

our company can't always quote the exact lead time on the larger 1-1/2" and 2" sizes because those are made to order roughly every 30 days or so, but the 1/4" through 1" sizes are typically within a week. The COA is included with each batch, and we've found the tolerance on these is tighter than most generic ferrule sets you'll see online — one thing buyers don't ask is that the raw rubber core can vary slightly in durometer between runs, which changes how much torque you apply during assembly.

The DIN standard is the most common for European gear, ANSI for North American stuff, and JIS mainly for Japanese equipment — just match it to your system, really. We'll send the HPLC purity data on the rubber if you need it, but basically these are for connecting hoses under high or low pressure and work up to about 200°F typically.

Anyway, we usually have stock on the 1/2" and 3/4" sizes, but confirm lead time if you need the 2" or the yellow finish because those move slower. The MOQ is 50 units for the smaller sizes and 20 for the 1-1/2" and up.