Hydrogenated Nitrile-Butadiene Rubber O-Ring, 90 Shore A, Broad Applicability (Prädifa Series N8680-90)

Where to Buy

HNBR O-ring with excellent gap extrusion and explosive decompression resistance for automotive, heavy duty, transportation and general industrial applications, black.

Technical Specifications

For Fluid Type: Broad Range
Inside Diameter: 4.47 to 209.14 mm
Cross Section Width: 1.5 to 3.53 mm
Polymer Material Options: Hydrogenated Nitrile Butadiene Rubber (HNBR, HSN)
Trade Name: N8680-90, N8680
Minimum Operating Temperature: -40 °F, -40 °C
Maximum Operating Temperature: 302 °F, 150 °C
Durometer: 90 Shore A
Industry: General Industrial
Specifications Met: AS 528, ISO 3601, BS 1806, BS 4518, JIS B2401, NF T 47-501, SMS 1586
Region of Origin: Europe
Color: Black

Full Product Description

The Parker Prädifa hydrogenated nitrile-butadiene rubber N8680-90 is suitable for a wide range of applications.

Special Features:
• Very good cold flexibility
• Very good mechanical robustness
• Very good resistance against gap extrusion
• Very good life time

Chemical Resistance to:
• Air (oil-free)
• Compressed air (oily)
• ATF oils
• Dexron VI ATF
• Mobil 1 + 5% Sturaco 7195
• R134a
• HFO1234yf
• Methanol
• Ethanol
• Ethane
• Natural gas
• Petroleum (sulphur-free)
• Mineral oils (tests with NBR-1/ECI recommended prior to use with dynamic seals)
• Petroleum-based lubricating oils
• Lubricating oils SAE 10, 20, 30, 40, 50
• HFC (Water/polyglycol)
• HFAE (Oil in water emulsions; mineral oils / synthethic esters)
• HFAS (Mineral oil free, water-based synthethic fluids)
• PAO (Polyalphaolefines)

Related Documents

Literature and Reference Materials
Aerospace Reference Guide--5800
O-Ring Guide-- PTD5712
O-Ring Handbook--PTD5705
Parker O-Ring eHandbook
Parker Tracking System and RFID Technology
Compound Data Sheet HNBR N8680
Installation Guidelines for O-Rings--ODE5705

Training
Basic Technical Glossary -- seal technology training
Introduction to Sealing -- seal technology training
Parker´s O-Ring Selector Video

Compliance, Certifications & Safety
How to read a test report
Prop 65 General Statement

Product Demos & Tutorials
How to Properly Store and Clean Elastomer Seals
Mixing the right ingredients: Material Development at Parker-Prädifa
Parker Final Exam in Physics / Sealing Systems Put to the Test