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Stainless Steel Hydraulic Fittings DIN 2353 Compression Fittings
Male Stud Connector (BSPP)
Stainless steel male stud connector with a 24° cone tube end and BSPP male thread, connecting tube to pump, valve block or cylinder ports. Port-end sealing by sealing washer, bonded seal or cutting edge.
- AISI 316L
- ISO 8434-1 (24° cone) / ISO 228-1 (BSPP)
Used in these sectors
| Material | AISI 316L |
|---|---|
| Connection standard | ISO 8434-1 (24° cone) / ISO 228-1 (BSPP) |
| Connection type | Tube end bite-type (nut and ferrule), port end male BSPP |
| Thread standard | ISO 228-1 BSPP (parallel, 55°) |
| Sealing | Sealing washer, bonded seal or cutting edge at the port end |
| Size | Per tube OD and thread size — subject to technical verification |
| Application | Pump, valve block and cylinder ports |
Request a quote for this product
Send us the size, thread standard and quantity; we'll give you pricing and lead time for stock or production.
1-3 business days for stock items; 10-20 business days after technical approval for custom sizes.
Description
About the product
The male stud connector (listed as a male stud coupling in UK catalogs) is the most common hydraulic connection for joining tube to an equipment port. One end has a 24° cone, ferrule and nut; the other has a parallel BSPP male thread to ISO 228-1. With a parallel thread, sealing does not take place on the thread itself but at the port face, by an elastomeric seal, a bonded seal or a cutting edge.
It is the starting point of the tube run at pump outlets, valve blocks, cylinder ports and manifolds. It is used constantly in the hydraulic power units of ship steering systems, on deck cranes, in press and mill roll hydraulics, and in hydraulic control panels.
- The port-side thread standard (BSPP, BSPT, NPT, metric, UNF) must always be verified; even where outside diameters are close, thread angle and pitch differ.
- The sealing type is selected according to the port surface and maintenance frequency; the soft-seal type is preferred for connections that are disassembled frequently.
- The seal material must be compatible with the fluid and the working temperature.
- Tube OD and series (L light / S heavy) must be specified together.
Installation note: The port face must be clean and free of scratches. First tighten the body into the port, then connect the tube with the nut and ferrule; a suitable assembly lubricant on stainless steel threads reduces the risk of galling.
To clarify before ordering
- Thread standard: BSPP / BSPT, NPT, UNF / JIC or metric
- Tube or hose size, connection orientation
- Working pressure and temperature
- Fluid type and environment (seawater, chemical, food)
- Sealing method: O-ring, sealing washer, cone seat
- Quantity and required lead time
Request sizes and technical drawing
We send this product's size options, thread standards and technical drawing on request. If the size you need is non-standard, we can manufacture it from a sample.
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Frequently asked questions
If your question isn't answered here, message us on WhatsApp with a message pre-filled with the product details.
Ask on WhatsAppWhat is the difference between BSPP and BSPT threaded fittings?
BSPP (ISO 228-1) is a parallel thread; sealing is achieved at the port face by a seal, bonded seal or cutting edge. BSPT (ISO 7-1) is a 1:16 tapered thread; sealing is achieved by thread engagement together with a suitable thread sealant. Both have a 55° thread form and, for the same size, the same pitch, so they are often confused in the field. Do not place an order until the port type has been verified.
How can I identify the thread standard of an existing fitting?
Measure the pitch with a thread pitch gauge and the major diameter with a caliper, then check whether the thread is parallel or tapered. If you are unsure, send us the sample part or a clear photo together with its dimensions; we will carry out fitting identification and recommend the right fitting.
Quote and technical verification
Quote for Male Stud Connector (BSPP)
Fill in the form or call us directly; we'll get back to you with stock availability, pricing and lead time.
Details that speed up your quote
- Size and thread standard
- Quantity and required lead time
- Working pressure and fluid
- Sample photo or technical drawing, if available
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