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Style 1400 Glass-Filled PTFE Piston Seal, 5.00 Inch Bore Diameter, 4.61 Inch Groove Diameter, Inch Groove Width

Description & Features

Designed for hydraulic cylinder applications requiring reliable low-friction sealing, the Style 1400 Glass-Filled PTFE Piston Seal from Hercules Sealing Products is built for a 5.00-inch bore with a groove diameter of 4.608 inches and a piston diameter of 4.996 inches.

The seal is constructed from 15% glass-filled PTFE paired with a rubber energizer, combining the chemical resistance and low friction of PTFE with the mechanical stability that glass reinforcement provides. This construction supports a pressure range of 0 to 5,000 PSI and a service temperature range of -40°F to 220°F, making it suitable for a broad range of hydraulic cylinder environments.

Bore tolerance is held to ±0.002 inches, with piston diameter tolerance at ±0.001 inches, reflecting the close-tolerance fit requirements typical of piston seal applications in industrial hydraulic systems.

SKU: PS1400-80

Supplier Part Number (MPN): PS1400-80

Alternate Part Numbers: C1DH57

Specifications

Bore 5	Bore Tolerance (in) ±0.002	Cross Section Tolerance (in) ±0.010	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Groove Dia. E 4.61	Groove Width Tolerance (in) ±0.002	Piston Dia. F 5.00	Piston Dia. Tolerance (in) ±0.001	Seal Height Tolerance (in) ±0.010	Supplier Part Number PS1400-80	Alternate Part Numbers Alternate Part Number C1DH57	Product Weight 0.03 lbs

Similar Products

Model Number	Bore	Groove Dia. E	Piston Dia. F	Bore Tolerance (in)	Cross Section Tolerance (in)	Seal Height Tolerance (in)	Piston Dia. Tolerance (in)	Groove Width Tolerance (in)
PS1400-40 Style 1400 PTFE Piston Seal	2.5	2.108	2.496	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-56 Style 1400 PTFE Piston Seal	3.5	3.108	3.496	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-80 Style 1400 PTFE Piston Seal	5	4.608	4.996	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-24 Style 1400 PTFE Piston Seal	1.5	1.24	1.497	±0.002	±0.005	±0.005	±0.001	±0.002
PS1400-26 Style 1400 PTFE Piston Seal	1.625	1.233	1.622	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-28 Style 1400 PTFE Piston Seal	1.75	1.358	1.747	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-32 Style 1400 PTFE Piston Seal	2	1.608	1.996	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-36 Style 1400 PTFE Piston Seal	2.25	1.858	2.246	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-44 Style 1400 PTFE Piston Seal	2.75	2.358	2.746	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-48 Style 1400 PTFE Piston Seal	3	2.608	2.996	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-52 Style 1400 PTFE Piston Seal	3.25	2.858	3.246	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-60 Style 1400 PTFE Piston Seal	3.75	3.358	3.746	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-64 Style 1400 PTFE Piston Seal	4	3.608	3.996	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-72 Style 1400 PTFE Piston Seal	4.5	4.108	4.496	±0.002	±0.010	±0.010	±0.001	±0.002
PS1400-96 Style 1400 PTFE Piston Seal	6	5.482	5.996	±0.002	±0.005	±0.005	±0.001	±0.002

Product Questions & Answers (1)

Question by: Carl M on Dec 18, 2025, 5:31 PM

got a 5 inch bore cylinder, is this style 1400 seal the right size or am i gonna be fightin it

Answer by: Customer Support on Dec 20, 2025, 8:55 AM

Fit comes down to matching the bore and groove numbers. This Style 1400 piston seal is sized for a 5.00 inch bore with a 4.608 inch groove diameter, and it’s paired with a 4.996 inch piston diameter. The tolerances called out are tight too, like ±0.002 on bore and groove width and ±0.001 on piston diameter, so it’s meant to run in a pretty specific setup.