Define the service conditions and select seal material. Note that some of these choices affect the sizing selector, so it is best to start here.
Service Conditions
Operating Temperature
Minimum 
Maximum 
Seal Material Selector
Polymer Group
Seal Hardness
Selected Compound

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Certifications
Certification Group
Individual Certifications

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 Product Matches


Fluid Compatibility :

 Product Matches

Find out the correct dimensions and tolerances for the o-ring and the hardware.

Hardware Configuration

Sealing Case
Application

Thermal Expansion & Volume Swelling
Seal
 ×10-6/K
Piston / Groove
 ×10-6/K
Bore
 ×10-6/K
Seal max. volume swell
 %

Sizing Selection

Back-up Rings
Amount
Width
 mm


O-ring Size Code
 

OR Nominal Tolerance Limit Min Max
ød1 Inner Diameter
±  
ød2 Cross section ±  
Groove Nominal Tolerance Lower Upper Min Max
ød4 Bore Diameter  
ød6 Groove  
ød7 Outer Diameter  
ød8 Inner diameter  
ød10 Bore  
ød5 Rod  
ød9 Piston  
ød3 Groove  
b Width  
h Depth  
r Radius  
 Recommended  Warning  Critical
Results Recommendation Concentric Eccentric
Min Max Min Max
t Depth + gap
s gap
Interference of OR outer-ø ... %
Stretch of OR inner-ø ... %
Compression of OR ød2 ... %
Gland fill ... %
Total deformation force N
Results Recommendation Min Max
Interference of OR outer-ø ... %
Stretch of OR inner-ø ... %
Compression of OR ød2 ... %
Gland fill ... %
Total deformation force N

Add optional notes.
Recommendations on application design and material selection are based on available technical data and are offered as suggestions only. Each user should make his own tests to determine the suitability for his own particular use. Parker offers no express or implied warranties concerning the form, fit, or function of a product in any application