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Pneumatic & Hydraulic Fittings

Keeping your pneumatic and hydraulic assemblies moving is crucial to your operation. Make sure you’re moving forward with our range of hydraulic fittings and pneumatic connectors. Whether you’re searching for tube fittings, push connectors, or adaptors, we have a wide range of parts available in our collection online.

At RS, we’ve developed a selection of high-quality, great-value pneumatic and hydraulic fittings and accessories that can help you connect the hoses, tubes, and pipes of a hydraulic system together. Whether they’re for home, commercial or industrial use, you’ll find everything you need and more right here.

What are hydraulic fittings and how do they work?

Hydraulic fittings connect hoses, pipes, and tubes in a hydraulic system. Most fittings and fixtures have a male and female component that join to form a connection. These help to contain and direct the flow of hydraulic fluid in a conductor, while preventing leaks and maintaining system pressure.

Depending on the hydraulic and pneumatic fittings you choose, you’ll be able to change the flow direction, elevation of lines, and split flow. When looking into methods of assembly, you’ll find that crimping is the most common. Once the crimp specifications have been checked for your hose and fitting, a crimping machine is adjusted to the appropriate diameter setting.

You’ll also notice that hydraulic connectors and fittings are made from a number of different materials including stainless steel, brass, and plastic. Because of the wide array of materials, they’re created from, pneumatic system fittings boast a range of performance capabilities.

It is more common for hydraulic fittings to be made from metals than plastic because higher pressures need stronger materials. Brass connectors are strong, durable, and corrosion-resistant. Stainless steel has a high heat resistance but is typically more expensive.

What are hydraulic fittings used for?

There are numerous applications for hydraulic fittings and pneumatic connectors. These parts are commonly used in hydraulic-powered applications in plumbing, robotics, assembly lines, and in heavy-duty equipment.

When looking at pipes and tubes for your application, it can be challenging to use them in moving operations because of their rigidity. For example, a construction digger that requires a hydraulic system but also needs the freedom of movement to operate their tool can place limitations on which hydraulic connectors are used. On the other hand, hydraulic pipes can allow flexibility in tool arm movements that are not possible with other tubes or pipes.

Another application that utilizes hydraulic fittings is in large complex vehicles like planes. They require hydraulics to operate wing movements and landing gears, using multiple hydraulics systems to help achieve movement.

Why choose RS for your hydraulic fittings and hydraulic connectors?

We’re committed to providing high-quality components and devices to our customers, and our hydraulic fittings are built to deliver for the long haul. Every product we offer to our customers is built on the ethos of durability, quality, and long-term satisfaction. That’s why we’re one of the leading distributors of electronics across North America. Whether you’re searching for pneumatic quick connect fittings, pneumatic air fittings, pneumatic control fittings, or any other types of hydraulic connectors, we have them right here.

Have you got a question about one of our hydraulic fittings or want some more information about any of the products available at RS? You can find further advice on our ranges via our expert content hub, or you can get in touch with our friendly team today to get the information you need ahead of your order.

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Product
You may only compare up to 5 items.
Festo QSML-M5-4
Mfr. Part #: QSML-M5-4
RS Stk #: 70990972
In Stock: 425
1 $3.69 /ea
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Festo QSL-1/4-6
Mfr. Part #: QSL-1/4-6
RS Stk #: 70990789
In Stock: 62
On Order: 100
1 $3.50 /ea
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Festo QSM-M5-4
Mfr. Part #: QSM-M5-4
RS Stk #: 70990945
In Stock: 187
On Order: 110
1 $2.55 /ea
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Festo QSL-1/8-6
Mfr. Part #: QSL-1/8-6
RS Stk #: 70990788
In Stock: 58
On Order: 300
1 $3.18 /ea
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Festo QS-1/4-8
Mfr. Part #: QS-1/4-8
RS Stk #: 70990747
In Stock: 166
1 $2.55 /ea
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Festo QSM-M5-6-I
Mfr. Part #: QSM-M5-6-I
RS Stk #: 70990958
In Stock: 299
1 $2.75 /ea
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Festo QS-8-6
Mfr. Part #: QS-8-6
RS Stk #: 70990780
In Stock: 56
On Order: 80
1 $3.88 /ea
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Festo QSL-1/8-8
Mfr. Part #: QSL-1/8-8
RS Stk #: 70990790
In Stock: 19
On Order: 80
1 $3.69 /ea
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Festo QS-G1/8-6
Mfr. Part #: QS-G1/8-6
RS Stk #: 70991258
In Stock: 118
1 $2.39 /ea
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Festo QS-G1/4-10
Mfr. Part #: QS-G1/4-10
RS Stk #: 70991263
In Stock: 36
On Order: 60
1 $3.58 /ea
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Festo QS-1/8-8
Mfr. Part #: QS-1/8-8
RS Stk #: 70990746
In Stock: 67
1 $2.46 /ea
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Festo QSM-6-4
Mfr. Part #: QSM-6-4
RS Stk #: 70990966
In Stock: 47
On Order: 30
1 $3.67 /ea
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Festo QSS-6
Mfr. Part #: QSS-6
RS Stk #: 70990899
In Stock: 110
On Order: 50
1 $5.40 /ea
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Festo QST-4
Mfr. Part #: QST-4
RS Stk #: 70990869
In Stock: 46
1 $4.63 /ea
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Festo QST-12
Mfr. Part #: QST-12
RS Stk #: 70990873
In Stock: 32
1 $9.16 /ea
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Festo QSC-8
Mfr. Part #: QSC-8
RS Stk #: 70990925
In Stock: 18
1 $1.93 /ea
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Festo QSL-G3/8-8
Mfr. Part #: QSL-G3/8-8
RS Stk #: 70991283
In Stock: 11
1 $5.13 /ea
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Festo QSF-1/8-6-B
Mfr. Part #: QSF-1/8-6-B
RS Stk #: 70990765
In Stock: 40
1 $3.88 /ea
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Festo QSY-4
Mfr. Part #: QSY-4
RS Stk #: 70990889
In Stock: 1
On Order: 10
+1 $4.95 /ea
+10 $4.71 /ea
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Festo QSL-1/4-4
Mfr. Part #: QSL-1/4-4
RS Stk #: 70991621
In Stock: 22
1 $3.41 /ea
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Availability
Price
Type
Tube Size
Port Size
Connection Style
Gender
Thread Type
Body Material
Series
In Stock: 425
1 $3.69 /ea
Elbow
4 mm
5 mm
Push to Connect
Plastic
QS Series
In Stock: 62
On Order: 100
1 $3.50 /ea
Elbow
6 mm
0.25 in
Push to Connect
R
Plastic
QS Series
In Stock: 187
On Order: 110
1 $2.55 /ea
Straight
4 mm
5 mm
Push to Connect
Plastic
QS Series
In Stock: 58
On Order: 300
1 $3.18 /ea
Elbow
6 mm
0.125 in
Push to Connect
R
Plastic
QS Series
In Stock: 166
1 $2.55 /ea
Straight
8 mm
0.25 in
Push to Connect
R
Brass
QS Series
In Stock: 299
1 $2.75 /ea
Straight
6 mm
5 mm
Push to Connect
Plastic
QS Series
In Stock: 56
On Order: 80
1 $3.88 /ea
Straight
8 mm
6 mm
Push to Connect
Plastic
QS Series
In Stock: 19
On Order: 80
1 $3.69 /ea
Elbow
8 mm
0.125 in
Push to Connect
R
Plastic
QS Series
In Stock: 118
1 $2.39 /ea
Straight
6 mm
0.125 in
Push to Connect
G
Brass
QS Series
In Stock: 36
On Order: 60
1 $3.58 /ea
Straight
10 mm
0.25 in
Push to Connect
G
Brass
QS Series
In Stock: 67
1 $2.46 /ea
Straight
8 mm
0.125 in
Push to Connect
R
Brass
QS Series
In Stock: 47
On Order: 30
1 $3.67 /ea
Straight
4 mm
6 mm
Push to Connect
Plastic
QS Series
In Stock: 110
On Order: 50
1 $5.40 /ea
Bulkhead
6 mm
14 mm
Push to Connect
Brass
QS Series
In Stock: 46
1 $4.63 /ea
Tee
4 mm
4 mm
Push to Connect
Plastic
QS Series
In Stock: 32
1 $9.16 /ea
Tee
12 mm
12 mm
Push to Connect
Plastic
QS Series
In Stock: 18
1 $1.93 /ea
Cap
8 mm
Push to Connect
Plastic
QS Series
In Stock: 11
1 $5.13 /ea
Elbow
8 mm
0.375 in
Push to Connect
G
Plastic
QS Series
In Stock: 40
1 $3.88 /ea
Straight
6 mm
0.125 in
Push to Connect
G
Brass
QS Series
In Stock: 1
On Order: 10
+1 $4.95 /ea
+10 $4.71 /ea
Push to Connect
QS Series
In Stock: 22
1 $3.41 /ea
Elbow
4 mm
0.25 in
Push to Connect
Plastic
QS Series
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