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Vee Packing Set, 4.00 Inch OD, 3.25 Inch ID, 1.38 Inch Height

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Description & Features

Rated for use across a broad pressure range, from standard hydraulic duty up to 10,000 PSI depending on the number of vee rings specified, this Vee Packing Set from Hercules Sealing Products is built for demanding linear sealing applications in cylinders and actuators. The set measures 4.00 inches OD, 3.25 inches ID, and 1.38 inches in height.

Construction combines fabric-reinforced rubber and urethane vee rings with nylon top and bottom adaptors, providing a balanced mix of flexibility and structural integrity across a service temperature range of -65°F to 220°F. The Hercules catalog number C1DS20 identifies the specific ring configuration: the code sequence indicates the quantity of top nylon adaptors, urethane vee rings, fabric vee rings, and bottom nylon adaptors in that order.

This set is well suited for hydraulic cylinder rod and piston sealing where adjustable or stacked vee packing arrangements are required.

SKU: VS32506X137

Supplier Part Number (MPN): VS32506X137

Alternate Part Numbers: C1DS20

Specifications

Brand
HERCULES® SEALING PRODUCTS
Additional Information
0 to 10000 psi Pressure Rating
Code TUFB
1051
Dimensions
1-3/8 in H
Grp Pressure Range
0 to 3000 psi (4 Vees), 0 to 5000 psi (5 Vees), 0 to 10000 psi (6 Vees)
Material
Nylon/Urethane

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Product Questions & Answers (3)

Question by: Dale T on Dec 2, 2025, 8:40 AM
trying to swap out an old packing set, are these dimensions the actual size or just “nominal”?
Answer by: Customer Support on Dec 3, 2025, 7:39 PM
Go by the stated measurements: 4.00 inch OD, 3.25 inch ID, and 1.38 inch height (listed as 1.375). Those are the physical dimensions of the set.
Question by: Merle B on Aug 1, 2025, 1:44 PM
how do i know how many vee rings to spec out for my pressure requirements on this set?
Answer by: Customer Support on Aug 3, 2025, 6:11 AM
Pressure capacity on these sets scales with the number of vee rings stacked in the assembly. Four vees handles up to 3,000 PSI, five vees gets you to 5,000 PSI, and six vees covers applications running up to 10,000 PSI. The catalog number C1DS20 tells you the exact ring count in a specific sequence: first digit is the quantity of top nylon adaptors, second is urethane vee rings, third is fabric vee rings, and fourth is bottom nylon adaptors. Match your operating pressure to the appropriate vee count before ordering so the set is built right for your application.
Question by: Daryl W on Jan 31, 2026, 7:04 AM
Reckon these'll hold up alright in a hydraulic cylinder that sees pretty steady use?
Answer by: Customer Support on Feb 2, 2026, 6:12 AM
Built for demanding linear sealing applications, this Vee Packing Set is rated up to 10,000 PSI depending on the number of vee rings you use, so it should handle steady use in a hydraulic cylinder.

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