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Style 1400 Glass-Filled PTFE Piston Seal, 3.00 Inch Bore Diameter, 2.61 Inch Groove Diameter, Inch Groove Width

Description & Features

This Style 1400 Glass-Filled PTFE Piston Seal is designed for a 3.00 inch bore and a 2.61 inch groove diameter.

Manufactured by Hercules Sealing Products, it features a 15% glass-filled PTFE seal with a rubber energizer. It is suitable for applications with pressures ranging from 0 to 5,000 PSI and temperatures from -40°F to 220°F. Bore tolerance is ±0.002 inches and the cross-section tolerance is ±0.010 inches.

SKU: PS1400-48

Supplier Part Number (MPN): PS1400-48

Alternate Part Numbers: C1DH50, MI-01035285, MINO-00407X30024

Specifications

Bore 3	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 2.61	Groove Width Tolerance (in) ±0.002	Piston Dia. F 3.00	Piston Dia. Tolerance (in) ±0.001	Seal Height Tolerance (in) ±0.010	Supplier Part Number PS1400-48	Alternate Part Numbers Alternate Part Number C1DH50, Alternate Part Number MI-01035285, Alternate Part Number MINO-00407X30024	Product Weight 0.02 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 (3)

Question by: Debbie H on Oct 29, 2025, 3:08 PM

Got a cylinder with a 3 inch bore that needs a new piston seal, this one gonna fit right?

Answer by: Customer Support on Oct 31, 2025, 10:24 AM

For a 3.00 inch bore, this is the correct size. The piston diameter comes in at 2.996 inches with a tolerance of plus or minus 0.001 inches, and the groove diameter is 2.608 inches. Bore tolerance is plus or minus 0.002 inches, so as long as your cylinder is within that range, you should have a proper fit without any modification.

Question by: Gene L on Jul 4, 2025, 3:48 PM

got a cylinder with a 3.00 bore, is this style 1400 seal the right fit for that 2.61-ish gland?

Answer by: Customer Support on Jul 6, 2025, 1:07 PM

It matches a 3.00 inch bore and a 2.608 inch groove diameter, with a 2.996 inch piston diameter. The tolerances called out are ±0.002 inch on bore and ±0.001 inch on piston diameter, so it is meant for fairly tight hardware.

Question by: Rod R on Aug 14, 2025, 2:25 PM

Will this seal hold up in a hydraulic system running around 3000 PSI, give or take?

Answer by: Customer Support on Aug 15, 2025, 2:56 PM

This Style 1400 seal is rated to handle pressures from 0 to 5,000 PSI, so 3000 PSI should be well within its operating range.