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Style 1800 Glass-Filled PTFE Piston Seal, 4.50 Inch Bore Diameter, 3.94 Inch Groove Diameter, Inch Groove Width

Description & Features

The Style 1800 Glass-Filled PTFE Piston Seal features a 4.50 inch bore diameter and a 3.94 inch groove diameter.

This Hercules Sealing Products piston seal is constructed from 15% glass-filled PTFE with a rubber energizer, providing reliable sealing performance in demanding hydraulic applications. It is suitable for pressures ranging from 0 to 5,000 PSI and temperatures from -40°F to 220°F.

SKU: PS1800-72

Supplier Part Number (MPN): PS1800-72

Alternate Part Numbers: C1DH83, MI-01037059, MINO-00407X30128

Specifications

Bore 4.50	Bore Tolerance (in) ±0.002	Cross Section Tolerance (in) +0.006 / -0	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Groove Dia. E 3.94	Groove Width Tolerance (in) ±0.002	Piston Dia. F 4.50	Piston Dia. Tolerance (in) +0/-0.006	Seal Cross Section C 0.09	Seal Height B 0.27	Seal Height Tolerance (in) +0.005 / -0	Supplier Part Number PS1800-72	Alternate Part Numbers Alternate Part Number C1DH83, Alternate Part Number MI-01037059, Alternate Part Number MINO-00407X30128	Product Weight 0.06 lbs

Similar Products

Model Number	Bore	Seal Height B	Seal Cross Section C	Groove Dia. E	Piston Dia. F	Bore Tolerance (in)	Piston Dia. Tolerance (in)	Cross Section Tolerance (in)	Seal Height Tolerance (in)	Groove Width Tolerance (in)
PS1800-20 Style 1800 PTFE Piston Seal	1.25	0.116	0.067	0.94	1.249	±0.002	+0/-0.005	+0.006 / -0	+0.005 / -0	±0.002
PS1800-24 Style 1800 PTFE Piston Seal	1.5	0.116	0.067	1.19	1.499	±0.002	+0/-0.005	+0.006 / -0	+0.005 / -0	±0.002
PS1800-32 Style 1800 PTFE Piston Seal	2	0.116	0.067	1.69	1.999	±0.002	+0/-0.005	+0.006 / -0	+0.005 / -0	±0.002
PS1800-36 Style 1800 PTFE Piston Seal	2.25	0.116	0.067	1.94	2.249	±0.002	+0/-0.005	+0.006 / -0	+0.005 / -0	±0.002
PS1800-40 Style 1800 PTFE Piston Seal	2.5	0.116	0.067	2.19	2.499	±0.002	+0/-0.005	+0.006 / -0	+0.005 / -0	±0.002
PS1800-48 Style 1800 PTFE Piston Seal	3	0.269	0.087	2.44	2.999	±0.002	+0/-0.006	+0.006 / -0	+0.005 / -0	±0.002
PS1800-56 Style 1800 PTFE Piston Seal	3.5	0.269	0.087	2.94	3.499	±0.002	+0/-0.006	+0.006 / -0	+0.005 / -0	±0.002
PS1800-64 Style 1800 PTFE Piston Seal	4	0.269	0.087	3.44	3.999	±0.002	+0/-0.006	+0.006 / -0	+0.005 / -0	±0.002
PS1800-68 Style 1800 PTFE Piston Seal	4.25	0.269	0.087	3.69	4.249	±0.002	+0/-0.006	+0.006 / -0	+0.005 / -0	±0.002
PS1800-72 Style 1800 PTFE Piston Seal	4.5	0.269	0.087	3.94	4.499	±0.002	+0/-0.006	+0.006 / -0	+0.005 / -0	±0.002
PS1800-80 Style 1800 PTFE Piston Seal	5	0.269	0.087	4.44	4.999	±0.002	+0/-0.006	+0.006 / -0	+0.005 / -0	±0.002
PS1800-88 Style 1800 PTFE Piston Seal	5.5	0.362	0.142	4.738	5.499	±0.002	+0/-0.007	±0.005	+0.005 / -0	±0.002
PS1800-96 Style 1800 PTFE Piston Seal	6	0.362	0.142	5.238	5.999	±0.002	+0/-0.007	±0.005	+0.005 / -0	±0.002

Product Questions & Answers (1)

Question by: Pete J on Apr 15, 2025, 7:01 PM

got a cylinder with a 4.50 bore. is this style 1800 seal the right size for that, or am i missin something

Answer by: Customer Support on Apr 17, 2025, 6:11 AM

For a 4.50 inch bore, this seal matches that bore size and is meant to run in a 3.94 inch groove diameter. The listed piston diameter is 4.499 inches with a +0 / -0.006 tolerance, so it is set up around that piston size.