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Style 1800 Glass-Filled PTFE Piston Seal, 5.50 Inch Bore Diameter, 4.74 Inch Groove Diameter, Inch Groove Width

Bore 5.50	Bore Tolerance (in) ±0.002	Cross Section Tolerance (in) ±0.005	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Groove Dia. E 4.74	Groove Width Tolerance (in) ±0.002	Piston Dia. F 5.50	Piston Dia. Tolerance (in) +0/-0.007	Seal Cross Section C 0.14	Seal Height B 0.36	Seal Height Tolerance (in) +0.005 / -0	Supplier Part Number PS1800-88	Alternate Part Numbers Alternate Part Number C1DH86, Alternate Part Number MI-01037259, Alternate Part Number MINO-00407X30144	Product Weight 0.13 lbs

Product Questions & Answers 1

Product Questions & Answers

got a 5.50 bore cylinder, is this seal the right size or am i gonna fight it

Question by: Keith S on May 17, 2025, 3:21 PM

It matches a 5.50 inch bore with a bore tolerance of ±0.002 inch. The groove diameter is 4.738 inches, and the seal cross section is 0.142 inch with a ±0.005 tolerance. It also lists a piston diameter F of 5.499 inch with a +0/-0.007 tolerance, which is the dimension given for pistons without wear rings.

Answer by: Customer Support on May 19, 2025, 12:19 PM

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	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	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	2	0.116	0.067	1.69	1.999	±0.002	+0/-0.005	+0.006 / -0	+0.005 / -0	±0.002
PS1800-36	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	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	3	0.269	0.087	2.44	2.999	±0.002	+0/-0.006	+0.006 / -0	+0.005 / -0	±0.002
PS1800-56	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	4	0.269	0.087	3.44	3.999	±0.002	+0/-0.006	+0.006 / -0	+0.005 / -0	±0.002
PS1800-68	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	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	5	0.269	0.087	4.44	4.999	±0.002	+0/-0.006	+0.006 / -0	+0.005 / -0	±0.002
PS1800-88	5.5	0.362	0.142	4.738	5.499	±0.002	+0/-0.007	±0.005	+0.005 / -0	±0.002
PS1800-96	6	0.362	0.142	5.238	5.999	±0.002	+0/-0.007	±0.005	+0.005 / -0	±0.002