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Style PSC Polyurethane Double-Acting Piston Seal, 2.00 Inch Bore Diameter, 1.63 Inch Groove Diameter, Inch Groove Width

Bore 2	Bore Tolerance (in) +0.002/-0	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Groove Dia. E 1.63	Groove Width Tolerance (in) +0.005 / -0	Piston Dia. F 2.00	Piston Dia. Tolerance (in) +0/-0.002	Seal Height B 0.26	Supplier Part Number PSC-326	Alternate Part Numbers Alternate Part Number C1GG32, Alternate Part Number MI-01037494, Alternate Part Number MINO-00407X30162	Product Weight 0.02 lbs

Product Questions & Answers 2

Product Questions & Answers

Got a cylinder here with a 2-inch bore and need a double-acting piston seal to replace the one that's wore out. This PSC-326 gonna fit right, or do I need to check anything before ordering?

Question by: Kent B on Aug 11, 2025, 9:09 AM

For a 2.00-inch bore, this seal is built to fit with a piston diameter of 1.998 inches and a groove diameter of 1.625 inches. The piston diameter tolerance runs +0/-0.002, so your actual piston needs to fall within that range. One thing worth knowing is that those piston diameter dimensions are based on pistons without wear rings, so if yours has wear rings installed, that changes the fit calculation.

Answer by: Customer Support on Aug 13, 2025, 6:39 AM

got a cylinder with a 2 inch bore, is this the right piston seal for it?

Question by: Neal P on Sep 1, 2025, 2:49 PM

For a 2.00 inch bore, this seal matches that bore size and is a double-acting piston seal. It is built around a 1.625 inch groove diameter and a piston diameter (F) of 1.998 inch with a +0/-0.002 tolerance, so it is meant to fit that style of piston and groove setup.

Answer by: Customer Support on Sep 3, 2025, 6:15 AM

Similar Products

Model Number	Bore	Seal Height B	Groove Dia. E	Piston Dia. F	Bore Tolerance (in)	Groove Width Tolerance (in)	Piston Dia. Tolerance (in)
PSC-218	1.5	0.15	1.254	1.498	+0.002/-0	+0.005 / -0	+0/-0.002
PSC-218-WB	1.5	0.265	1.254	1.498	+0.002/-0	+0.005 / -0	+0/-0.002
PSC-326	2	0.255	1.625	1.998	+0.002/-0	+0.005 / -0	+0/-0.002
PSC-326-WB	2	0.37	1.625	1.998	+0.002/-0	+0.005 / -0	+0/-0.002
PSC-330	2.5	0.255	2.125	2.498	+0.002/-0	+0.005 / -0	+0/-0.002
PSC-334	3	0.255	2.624	2.997	+0.002/-0	+0.005 / -0	+0/-0.004
PSC-334-WB	3	0.37	2.624	2.997	+0.004/-0	+0.005 / -0	+0/-0.004
PSC-338	3.5	0.255	3.125	3.498	+0.004/-0	+0.005 / -0	+0/-0.004
PSC-342	4	0.255	3.625	3.998	+0.004/-0	+0.005 / -0	+0/-0.004
PSC-342-WB	4	0.37	3.625	3.998	+0.004/-0	+0.005 / -0	+0/-0.004
PSC-350	5	0.255	4.636	4.999	+0.004/-0	+0.005 / -0	+0/-0.004
PSC-433-WB	6	0.5	5.521	5.999	+0.004/-0	+0.006 / -0	+0/-0.004