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

Description & Features

The Style 1600 Glass-Filled PTFE Piston Seal is expertly designed for hydraulic applications requiring robust sealing capabilities. With a 3.50-inch bore diameter and a 3.10-inch groove diameter, this seal ensures a precise fit for pistons without wear rings. Its construction features a 15% glass-filled PTFE for enhanced durability and a rubber energizer for optimal performance across a pressure range of 0 to 5,000 PSI. This reliable piston seal operates efficiently in temperatures from -40°F to 220°F, making it suitable for demanding industrial environments.

Manufactured by Hercules Sealing Products, this piston seal exemplifies precision with a bore tolerance of ±0.001 inches and a cross-section tolerance of +0.005/-0 inches. The seal's cross-section measures 0.085 inches, with a height of 0.15 inches, lending itself to effective sealing performance. Ideal for high-pressure systems, the Style 1600 PTFE Piston Seal offers the strength and resilience needed for maintaining system integrity in various applications.

SKU: PS1600-56

Supplier Part Number (MPN): PS1600-56

Alternate Part Numbers: C1DH69

Specifications

Bore 3.50	Bore Tolerance (in) ±0.001	Cross Section Tolerance (in) +0.005 / -0	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Groove Dia. E 3.10	Groove Width Tolerance (in) +0.003 / -0	Piston Dia. F 3.50	Piston Dia. Tolerance (in) +0/-0.004	Seal Cross Section C 0.09	Seal Height B 0.15	Seal Height Tolerance (in) +0.005 / -0	Supplier Part Number PS1600-56	Alternate Part Numbers Alternate Part Number C1DH69	Product Weight 0.02 lbs

Similar Products

Model Number	Bore	Seal Height B	Seal Cross Section C	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)
PS1600-32 Style 1600 PTFE Piston Seal	2	0.12	0.055	1.723	1.999	+0.003 / -0	+0.005 / -0	±0.001	+0.005 / -0	+0/-0.003
PS1600-36 Style 1600 PTFE Piston Seal	2.25	0.12	0.055	1.937	2.249	+0.003 / -0	+0.005 / -0	±0.001	+0.005 / -0	+0/-0.003
PS1600-40 Style 1600 PTFE Piston Seal	2.5	0.12	0.055	2.223	2.499	+0.003 / -0	+0.005 / -0	±0.001	+0.005 / -0	+0/-0.003
PS1600-44 Style 1600 PTFE Piston Seal	2.75	0.15	0.085	2.348	2.749	+0.003 / -0	+0.005 / -0	±0.001	+0.005 / -0	+0/-0.004
PS1600-48 Style 1600 PTFE Piston Seal	3	0.15	0.085	2.603	2.999	+0.003 / -0	+0.005 / -0	±0.001	+0.005 / -0	+0/-0.004
PS1600-52 Style 1600 PTFE Piston Seal	3.25	0.15	0.085	2.853	3.249	+0.003 / -0	+0.005 / -0	±0.001	+0.005 / -0	+0/-0.004
PS1600-56 Style 1600 PTFE Piston Seal	3.5	0.15	0.085	3.103	3.499	+0.003 / -0	+0.005 / -0	±0.001	+0.005 / -0	+0/-0.004
PS1600-64 Style 1600 PTFE Piston Seal	4	0.15	0.085	3.6	3.999	+0.003 / -0	+0.005 / -0	±0.001	+0.005 / -0	+0/-0.004
PS1600-68 Style 1600 PTFE Piston Seal	4.25	0.15	0.085	3.853	4.249	+0.003 / -0	+0.005 / -0	±0.001	+0.005 / -0	+0/-0.004

Product Questions & Answers (3)

Question by: Rex M on Oct 7, 2025, 3:47 PM

What's the deal with the temperature range on this seal? Gotta make sure it can handle the heat, ya know?

Answer by: Customer Support on Oct 9, 2025, 10:51 AM

It's rated to handle temperatures from -40°F all the way up to 220°F, so it should be good in most industrial settings.

Question by: Wade C on Apr 23, 2025, 3:41 PM

Got a 3.50 bore cylinder here with no wear rings on the piston, will this seal fit right without needing any modifications?

Answer by: Customer Support on Apr 24, 2025, 9:02 PM

For pistons without wear rings, the piston diameter dimension on this seal is 3.499 inches, so it should drop right in with a proper snug fit. The groove diameter comes in at 3.103 inches, and the bore tolerance is held to plus or minus 0.001 inches, so the fitment is pretty precise. Just make sure your groove dimensions line up before installing and you ought to be good to go.

Question by: Warren C on Jul 12, 2025, 8:35 PM

got a cylinder with a 3.50 bore and no wear ring, is this Style 1600 seal the right fit or am i gonna be fighting it

Answer by: Customer Support on Jul 14, 2025, 6:01 AM

For a 3.50 inch bore on a piston without wear rings, the given piston diameter is 3.499 inches with a +0/-0.004 tolerance, and the seal is sized around a 3.103 inch groove diameter. Bore tolerance is listed at plus or minus 0.001 inch, so it is meant to be a precise fit when your bore and groove match those dimensions.