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CP90BK91-OR-408
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CS

0.275 in

(6.99 mm)

ID

2.350 in

(59.69 mm)

ORing cut reference

FFKM Canrez CP90BK91 O-Ring, Size: -408

Material: FFKM Canrez CP90BK91 O-Ring

Size: AS568 -408 O-Ring

Part Number: CP90BK91-OR-408

CanRez® (Canyon Components)

CP90BK91

FFKM (Perfluoroelastomer)

90

Shore A

API 6A

Ultra Low Temperature Material

AED NORSOK M710

Anti-Explosive Decompression

Color: Black

Detailed Description

CP90BK91-OR-408 is a Black, 90 Shore A, FFKM (Perfluoroelastomer) O-Ring made from CanRez® (Canyon Components). CanRez® (Canyon Components) CP90BK91 is manufactured with the following features & specifications: API 6A, Ultra Low Temperature Material, AED NORSOK M710, Anti-Explosive Decompression. CP90BK91-OR-408 is AS568 size -408 O-Ring also referred to as 6.99mm (Cross Sectional Diameter (CS)) x 59.69mm (Inside Diameter (ID)).


Material: FFKM Canrez CP90BK91 O-Ring


Size: AS568 -408, 6.99mm CS X 59.69mm ID (0.275" CS X 2.350" ID)

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Technical SpecificationValue
Compound NumberCP90BK91
BrandCanRez® (Canyon Components)
MaterialFFKM (Perfluoroelastomer)
ColorBlack
Durometer90 Shore A
High Temperature240 °C / 464 °F
Low Temperature-45 °C / -49 °F
Geometry Specifications
Cross Sectional GeometryO-Ring
Size StandardAS568
Size-408
Cross Section (CS)6.99 mm / 0.275 in
Inside Diameter (ID)59.69 mm / 2.350 in
Other Specifications

API 6A

AED NORSOK M710

Anti-Explosive Decompression

ORing cut reference
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Canrez® CP90BK91 is a 90 Shore A black FFKM compound engineered for ultra-low-temperature performance and exceptional chemical resistance in high-pressure sealing environments. It provides near-universal chemical compatibility and maintains flexibility down to -46°C (-51°F), making it ideal for applications where conventional perfluoroelastomers lose elasticity. With a service temperature range of -46°C to 240°C (-51°F to 464°F), CP90BK91 delivers reliable sealing integrity, excellent dimensional stability, and resistance to explosive decompression. Tested to NORSOK M-710 and API 6A sour gas standards, it ensures safety and performance under severe thermal and chemical cycling.

 

CP90BK91 is ideal for ultra-low-temperature valves, pumps, and dynamic sealing systems in oil and gas, chemical processing, and cryogenic environments. It resists degradation from fuels, amines, acids, and solvents while maintaining sealing strength through rapid temperature and pressure fluctuations. This Canrez® formulation combines high durometer strength, AED protection, and low-temperature flexibility to provide dependable sealing performance in the most demanding industrial applications. Compare to other popular brands of FFKM materials such as Kalrez® 0090 and 0040.