Sealing Devices Phone Number

Request Info

If you see this, do not fill out this input field

Sealing Devices Product literature
Rather Talk with an Engineer?
Buy Now Browse Catalog

Parker EM163-80 O-rings

Meeting system sealing challenges

A new EM163-80 80 durometer black EPDM compound from Parker OES is a terpolymer of ethylene and propylene with a diene third monomer used for cross linking which is particularly useful for sealing phosphate-ester hydraulic fluids and in glycol based fluid brake systems in aircraft system applications.

Temperature range: -80°F to 250°F (-62°C to 121°C), Certifications include: NAS 1613 Rev 6, color:  black


• Chemical resistance
• Hot water and steam up to 300°F (149°C)
• Glycol based brake fluids (Dot 3 & 4) and silicone-based brake fluids (Dot 5) up to 300°F (149°C)
• Many organic and inorganic acids
• Cleaning agents, sodium and potassium alkalis
• Phosphate-ester based hydraulic fluids (HFD-R, Skydrol, Hyjet)
• Silicone oil and grease
• Many polar solvents (alcohols, ketones, esters)
• Ozone, aging and weather resistant

Not compatible with mineral oil products.

Parker's ethylene propylene rubber (EPM, EPR, EPDM) O-rings are compatible with phosphate ester hydraulic fluids, amines, solvents and other chemicals.

Inside Diameter - 0.029 to 25.94, Width - 0.04 to 0.275

Nominal Hardness Range - >70, Nominal Hardness - 80

Thermal Application (F) - Low temperature (<-30F), Minimum Working Temperature (F) -80, Maximum Working Temperature (F) - 250

Fluid Compatibility - water/steam

Meets Certifications - NAS 1613 REV6  - 

Download Spec Sheet - EM163-80 OES 7002.pdf


New EM163-80 replaces Parker E1267-80 compounds.