Style 1600 Glass-Filled PTFE Piston Seal, 4.25 Inch Bore Diameter, 3.85 Inch Groove Diameter, Inch Groove Width

Description & Features

This Style 1600 Glass-Filled PTFE Piston Seal is manufactured by Hercules Sealing Products. It has a 4.25 inch bore diameter and a 3.85 inch groove diameter.

The seal features a 15% glass filled PTFE seal and a rubber energizer. It is suitable for pressures ranging from 0 to 5,000 PSI and temperatures from -40°F to 220°F.

SKU: PS1600-68

Supplier Part Number (MPN): PS1600-68

Alternate Part Numbers: C1DH71

Specifications

Brand
HERCULES® SEALING PRODUCTS
Additional Information
0 to 5000 psi Pressure Rating
Dimensions
0.15 in H
Material
Glass Filled PTFE/NBR
Series
PS1600 Series

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Model Number Bore Seal Height B Seal Cross Section C Groove Width D Groove Dia. E Piston Dia. F Groove Width Tolerance (in) Seal Height Tolerance (in) Bore Tolerance (in) Cross Section Tolerance (in) Piston Dia. Tolerance (in) Price Action
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Style 1600 Glass-Filled PTFE Piston Seal, 3.25 Inch Bore Diameter, 2.85 Inch Groove Diameter, Inch Groove Width

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+0.005 / -0

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Style 1600 Glass-Filled PTFE Piston Seal, 3.50 Inch Bore Diameter, 3.10 Inch Groove Diameter, Inch Groove Width

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Style 1600 Glass-Filled PTFE Piston Seal, 4.00 Inch Bore Diameter, 3.60 Inch Groove Diameter, Inch Groove Width

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4

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+0.003 / -0

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±0.001

+0.005 / -0

+0/-0.004

Product Questions & Answers (1)

Question by: Neil C on Feb 13, 2026, 7:41 AM
trying to swap out a piston seal, how tight do i need to be on the bore size for this one
Answer by: Customer Support on Feb 14, 2026, 9:36 AM
The bore is 4.25 inches with a stated bore tolerance of plus or minus 0.001 inch. The matching piston diameter is 4.249 inches with a piston diameter tolerance of +0 / -0.004 inch.

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