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English Views: 1 Author: Jodie Publish Time: 2026-09-15 Origin: Site
15611SW is a straight hydraulic hose fitting with a swivel NPT male taper thread. It lets installers tighten the connection without twisting the hose. This guide from Hand Hydraulic covers sizes, pressure ratings, materials, and where to use 15611SW fittings.
15611SW fittings connect a hydraulic hose to a female NPT port. The “SW” means the male end rotates freely on a swivel nut. That rotation makes assembly easier and reduces stress on the hose.
The body is usually machined from carbon steel or stainless steel. A captive nut with an O-ring or metal sealing face joins the male taper thread to the port. Common finishes include zinc plating, zinc-nickel, and yellow chromate.
Swivel construction: The male NPT thread turns independently of the hose end. Installers can clock the fitting to the correct angle after the hose is crimped.
Taper thread seal: NPT threads create a pressure-tight joint with thread sealant. No separate O-ring is needed on the thread itself.
Compact straight shape: Straight fittings fit tight routing paths and reduce pressure drop compared to elbow adapters.
Dash-size matching: Standard 15611SW sizes line up with common hydraulic hose IDs from 1/4 inch to 1 inch.
100% pressure testing: Each batch is pressure tested before shipment.
The table below lists the most common 15611SW dash sizes. Each part number pairs a hose size with an NPT male thread of the same nominal size.
Part Number | Hose Dash | Hose ID (in) | NPT Male Thread | Hex (mm) |
|---|---|---|---|---|
15611-04-04SW | -04 | 1/4 | 1/4-18 NPT | 19 |
15611-06-06SW | -06 | 3/8 | 3/8-18 NPT | 22 |
15611-08-08SW | -08 | 1/2 | 1/2-14 NPT | 27 |
15611-12-12SW | -12 | 3/4 | 3/4-14 NPT | 32 |
15611-16-16SW | -16 | 1 | 1-11.5 NPT | 41 |
Custom thread sizes and non-standard hex dimensions are available on request. Contact us with your drawing or sample.
Working pressure depends on the hose, fitting size, and material. A 15611-04-04SW on a two-wire braid hose typically handles around 5,000 psi. Larger sizes and lower reinforcement hoses run at proportionally lower pressure.
Always match the fitting series to the hose type. Use the correct ferrule for the specific hose OD. Reusing a ferrule from a different hose family can create a weak crimp joint.
NPT swivel straight fittings appear in systems that need frequent service or repositioning. Common industries include:
Mobile construction and agricultural equipment
Industrial press and machine tool hydraulics
Material handling and forklift systems
Oil and gas field service equipment
General OEM hose assemblies
If your application uses BSP or metric threads instead of NPT, see our 22613 BSP female 60° cone interlock fittings or 10411 metric male 24° cone seat fittings.
Hand Hydraulic manufactures hydraulic and pneumatic fittings in Ningbo, China. We machine carbon steel, stainless steel, and brass adapters to SAE, DIN, BSP, and metric standards. Our production includes forging, CNC machining, surface treatment, and pressure testing.
Buyers choose us for on-time sample support, competitive MOQs, and consistent thread quality. We pack parts carefully and ship worldwide.
15611SW is a part number for a straight hydraulic hose fitting with a swivel NPT male taper thread. The swivel nut rotates during assembly so the hose does not twist.
15611SW fittings use American National Pipe Taper threads, commonly called NPT. The tapered thread forms a mechanical seal when properly tightened with thread sealant or tape.
Yes, Hand Hydraulic can customize 15611SW NPT swivel fittings and other hydraulic adapters according to your drawings, thread requirements, and surface treatment specifications.
The standard dash sizes match one-wire and two-wire braided hydraulic hoses such as SAE 100R1AT and SAE 100R2AT. Confirm the hose OD before selecting the ferrule.
Use quality thread sealant or PTFE tape on the male taper thread. Tighten to the recommended turns past hand-tight, and avoid over-torquing which can crack the port or fitting.
Send your size list, quantity, and finish requirement to Hand Hydraulic. We will confirm stock, pricing, and delivery time within one working day.
Contact us or browse the full hydraulic fittings catalog.