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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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SMC Corporation KQ2C07-00A
Mfr. Part #: KQ2C07-00A
RS Stk #: 70334766
In Stock: 114
On Order: 70
1 $2.75 /ea
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SMC Corporation KQ2H13-37AS
Mfr. Part #: KQ2H13-37AS
RS Stk #: 70245162
In Stock: 163
1 $3.91 /ea
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RoHS Compliant RoHS Compliant

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SMC Corporation KQ2R03-07A
Mfr. Part #: KQ2R03-07A
RS Stk #: 70245209
In Stock: 193
1 $1.93 /ea
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RoHS Compliant RoHS Compliant

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SMC Corporation KQ2H03-00A
Mfr. Part #: KQ2H03-00A
RS Stk #: 70245214
In Stock: 172
1 $2.45 /ea
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SMC Corporation KQ2U04-00A
Mfr. Part #: KQ2U04-00A
RS Stk #: 70245221
In Stock: 74
1 $4.81 /ea
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SMC Corporation KQ2H08-02AS
Mfr. Part #: KQ2H08-02AS
RS Stk #: 70247144
In Stock: 100
1 $2.71 /ea
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SMC Corporation KQ2L08-01AS
Mfr. Part #: KQ2L08-01AS
RS Stk #: 70247206
In Stock: 89
On Order: 70
1 $3.63 /ea
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SMC Corporation KQ2L11-00A
Mfr. Part #: KQ2L11-00A
RS Stk #: 70247224
In Stock: 331
On Order: 240
1 $5.33 /ea
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Norgren 124250418
Mfr. Part #: 124250418
RS Stk #: 70436619
In Stock: 357
On Order: 293
+1 $4.43 /ea
+10 $4.30 /ea
+25 $4.21 /ea
+50 $4.12 /ea
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Festo QSL-1/8-8
Mfr. Part #: QSL-1/8-8
RS Stk #: 70990790
In Stock: 28
On Order: 80
1 $3.69 /ea
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SMC Corporation KQ2P-10
Mfr. Part #: KQ2P-10
RS Stk #: 70071037
In Stock: 51
1 $1.61 /ea
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SMC Corporation KQ2L06-00A
Mfr. Part #: KQ2L06-00A
RS Stk #: 70247190
In Stock: 210
1 $3.23 /ea
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SMC Corporation KQ2E07-00N
Mfr. Part #: KQ2E07-00N
RS Stk #: 70279150
In Stock: 63
On Order: 120
1 $5.01 /ea
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SMC Corporation KQ2H06-U01A
Mfr. Part #: KQ2H06-U01A
RS Stk #: 70247133
In Stock: 10
On Order: 110
1 $2.52 /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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SMC Corporation KQ2H04-01AS
Mfr. Part #: KQ2H04-01AS
RS Stk #: 70245174
In Stock: 125
1 $1.62 /ea
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SMC Corporation KQ2R07-09A
Mfr. Part #: KQ2R07-09A
RS Stk #: 70247252
In Stock: 52
On Order: 40
1 $1.97 /ea
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SMC Corporation KQ2L03-32N
Mfr. Part #: KQ2L03-32N
RS Stk #: 70323101
In Stock: 114
1 $2.71 /ea
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SMC Corporation KQ2S07-32N
Mfr. Part #: KQ2S07-32N
RS Stk #: 70927663
In Stock: 5805
1 $4.60 /ea
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SMC Corporation KQ2U08-00A
Mfr. Part #: KQ2U08-00A
RS Stk #: 70247323
In Stock: 147
1 $5.65 /ea
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Availability
Price
Type
Tube Size
Port Size
Connection Style
Gender
Thread Type
Body Material
Standards
Series
In Stock: 114
On Order: 70
1 $2.75 /ea
One-Touch Fitting
1/4 in
Pneumatic Elbow Threaded-To-Tube Adapter
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
KQ2 Series
In Stock: 163
1 $3.91 /ea
One-Touch Fitting
1/2 in.
0.5 in
Male Pneumatic Straight Threaded-To-Tube Adapter
Male
NPT
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
KQ2 Series
In Stock: 193
1 $1.93 /ea
One-Touch Fitting
5/32 in
0.25 in
Pneumatic Straight Threaded-To-Tube Adapter
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
KQ2 Series
In Stock: 172
1 $2.45 /ea
One-Touch Fitting
5/32 in
0.15625 in
Push In-Pneumatic Straight Tube-To-Tube Adapter
Male
NPT
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
RoHs Compliance
KQ2 Series
In Stock: 74
1 $4.81 /ea
One-Touch Fitting
4 mm
4 mm
Push In-Pneumatic Y Tube-To-Tube Adapter
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
RoHs Compliance
KQ2 Series
In Stock: 100
1 $2.71 /ea
One-Touch Fitting
8 mm
0.25 in
Male Pneumatic Straight Threaded-To-Tube Adapter
Male
R
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
RoHs Compliance, JIS B 0203
KQ2 Series
In Stock: 89
On Order: 70
1 $3.63 /ea
One-Touch Fitting
8 mm
0.125 in
Male Pneumatic Elbow Threaded-To-Tube Adapter
Male
R
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
RoHs Compliance, JIS B 0203
KQ2 Series
In Stock: 331
On Order: 240
1 $5.33 /ea
One-Touch Fitting
3/8 in
0.375 in
Pneumatic Elbow Threaded-To-Tube Adapter
Male
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
RoHs Compliance
KQ2 Series
In Stock: 357
On Order: 293
+1 $4.43 /ea
+10 $4.30 /ea
+25 $4.21 /ea
+50 $4.12 /ea
Fitting
1/4 in.
0.125 in
Male
NPT
Nickel
Pneufit Series
In Stock: 28
On Order: 80
1 $3.69 /ea
Elbow
8 mm
0.125 in
Push to Connect
R
Plastic
QS Series
In Stock: 51
1 $1.61 /ea
Plug
10 mm
One Touch
Plastic
RoHs Compliance
KQ2 Series
In Stock: 210
1 $3.23 /ea
One-Touch Fitting
6 mm
6 mm
Pneumatic Elbow Threaded-To-Tube Adapter
Male
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
RoHs Compliance
KQ2 Series
In Stock: 63
On Order: 120
1 $5.01 /ea
Bulkhead Union
1/4 in.
16 mm
One Touch
UNF
Brass
KQ2E07-00N
KQ2 Series
In Stock: 10
On Order: 110
1 $2.52 /ea
One-Touch Fitting
6 mm
0.125 in
Male Pneumatic Straight Threaded-To-Tube Adapter
Male
Uni
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
RoHs Compliance, JIS B 0203
KQ2 Series
In Stock: 118
1 $2.39 /ea
Straight
6 mm
0.125 in
Push to Connect
G
Brass
QS Series
In Stock: 125
1 $1.62 /ea
One-Touch Fitting
4 mm
0.125 in
Male Pneumatic Straight Threaded-To-Tube Adapter
Male
R
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
RoHs Compliance, JIS B 0203
KQ2 Series
In Stock: 52
On Order: 40
1 $1.97 /ea
One-Touch Fitting
1/4 in
0.3125 in
Plug-In Reducer
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
KQ2 Series
In Stock: 114
1 $2.71 /ea
Elbow
5/32 in.
10 to 32 UNF
One Touch
Male
Brass| Plastic
KQ2 Series
In Stock: 5805
1 $4.60 /ea
Hex Socket| Male
1/4 in.
10 to 32 UNF
Male
UNF
KQ2 Series
In Stock: 147
1 $5.65 /ea
One-Touch Fitting
8 mm
8 mm
Push In-Pneumatic Y Tube-To-Tube Adapter
C3604| Polybutylene Terephthalate (PBT)| PP| Stainless Steel 303
RoHs Compliance
KQ2 Series
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