canyon components logo
HF391-75-OR-203

Image shown is representative and may differ from the actual product in size, proportions, and color shade

Parker Seal® (Parker)
CS

0.139 in

(3.53 mm)

ID

0.296 in

(7.52 mm)

ORing cut reference

FKM Parker HF391-75 O-Ring, Size: -203

Material: FKM Parker HF391-75 O-Ring

Size: AS568 -203 O-Ring

Part Number: HF391-75-OR-203

Parker Seal® (Parker)

HF391-75

FKM (Viton®)

75

Shore A

HiFluor

Color: Blue

Detailed Description

HF391-75-OR-203 is a Blue, 75 Shore A, FKM (Viton®) O-Ring made from Parker Seal® (Parker). It is a 75 durometer FKM (Viton®). Parker Seal® (Parker) HF391-75 is manufactured with the following features & specifications: HiFluor. HF391-75-OR-203 is AS568 size -203 O-Ring also referred to as 3.53mm (Cross Sectional Diameter (CS)) x 7.52mm (Inside Diameter (ID)). Material: 75 Durometer FKM Parker HF391-75 O-Ring Size: AS568 -203, 3.53mm CS X 7.52mm ID (0.139" CS X 0.296" ID)

HF391-75 typical industry applicationHF391-75 industry symbol
Technical SpecificationValue
Compound NumberHF391-75
BrandParker Seal® (Parker)
MaterialFKM (Viton®)
ColorBlue
Durometer75 Shore A Hardness
High Temperature191 °C / 376 °F
Low Temperature-26 °C / -15 °F
Geometry Specifications
Cross Sectional GeometryO-Ring
Size StandardAS568
Size-203
Cross Section (CS)3.53 mm / 0.139 in
Inside Diameter (ID)7.52 mm / 0.296 in
Other Specifications

HiFluor

ORing cut reference
Parker Seal® (Parker)

Need a Custom Quote?

We manufacture millions of parts. Get in touch today.

Request a Quote

© 2026 Canyon Components, Inc. All rights reserved. Canyon Components International Corporation • Sitemap

These products may be covered by existing or pending patents. Canyon Components is not liable for the accuracy, currency, or completeness of information herein. All information is subject to change without notice. All trademarks and service marks are the property of their respective owners. Made withgu.dev, Icons by Icons8

* Disclaimer: Kalrez® is a registered trademark of DuPont™. It represents a high-performance perfluoroelastomer used in demanding sealing applications. Please note that the Kalrez® brand is not owned by Canyon Components. All rights and ownership of the Kalrez® trademark are held by DuPont™, ensuring the quality and reliability associated with this renowned brand.