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Vee Packing Set, 4.50 Inch OD, 3.75 Inch ID, 0.19 Inch Height

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Description & Features

This Hercules Sealing Products Vee Packing Set features fabric reinforced rubber and urethane vee rings, along with nylon top and bottom adaptors. The 4.50 Inch OD, 3.75 Inch ID, 0.19 Inch Height Vee Packing Set is suitable for group pressure ranges from 0 to 3000 PSI (4 Vees), 0 to 5000 PSI (5 Vees), and 0 to 10,000 PSI (6 Vees). It performs within a group temperature range of -65°F to 220°F.

This Vee Packing Set has a height of 0.188 inches.

SKU: VS37506X118

Supplier Part Number (MPN): VS37506X118

Alternate Part Numbers: C1DS25

Specifications

Brand
HERCULES® SEALING PRODUCTS
Additional Information
0 to 10000 psi Pressure Rating
Code TUFB
1221
Dimensions
1-3/16 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

Product Questions & Answers (3)

Question by: Scott F on Feb 8, 2026, 6:12 AM
How many vee rings come in this set? Just trying to make sure I'm ordering the right thing.
Answer by: Customer Support on Feb 9, 2026, 10:04 AM
The quantity of urethane and fabric vee rings varies depending on the pressure range you need. The "How To Order" section explains the code; the 2nd number is the quantity of Urethane vee rings, and the 3rd is the quantity of Fabric vee rings.
Question by: Carl C on Sep 28, 2025, 7:27 AM
trying to figure out how many vee rings I need for running up around 4,500 PSI, does the number of vees in the set change based on pressure?
Answer by: Customer Support on Sep 29, 2025, 11:30 AM
For that pressure range, you'd want to go with the 5-vee configuration, which covers up to 5,000 PSI. The set is built so you can run 4 vees for up to 3,000 PSI, 5 vees for up to 5,000 PSI, or 6 vees when you're pushing all the way to 10,000 PSI. The rings themselves are a mix of urethane and fabric-reinforced rubber, with nylon adaptors on the top and bottom. So the stack height will vary depending on how many vee rings you run, but the adaptors stay the same.
Question by: Wade W on Oct 20, 2025, 7:53 PM
got a gland that measures 3.75 on the shaft and about 4.50 on the bore, is this the right vee packing size?
Answer by: Customer Support on Oct 22, 2025, 6:25 PM
For sizing, match the set’s ID and OD to your hardware. This one is 3.75 inch ID and 4.50 inch OD, with an overall height right around 0.188 inch (often shown as 0.19).

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