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Style PSC Polyurethane Double-Acting Piston Seal, 1.50 Inch Bore Diameter, 1.25 Inch Groove Diameter, Inch Groove Width

Bore 1.50	Bore Tolerance (in) +0.002/-0	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Groove Dia. E 1.25	Groove Width Tolerance (in) +0.005 / -0	Piston Dia. F 1.50	Piston Dia. Tolerance (in) +0/-0.002	Seal Height B 0.27	Supplier Part Number PSC-218-WB	Alternate Part Numbers Alternate Part Number C1KM96	Product Weight 0.03 lbs

Product Questions & Answers 1

Product Questions & Answers

got a cylinder with a 1.50 bore. is this PSC-218-WB the right size piston seal for it?

Question by: Peggy A on Jun 27, 2025, 7:10 PM

Fit comes down to matching the bore and groove dimensions. This seal is sized for a 1.50 inch bore, with a 1.254 inch groove diameter, a 1.498 inch piston diameter, and a 0.265 inch seal height. The tolerances called out are bore +0.002/-0 and groove width +0.005/-0, with piston diameter tolerance +0/-0.002.

Answer by: Customer Support on Jun 29, 2025, 7:08 AM

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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
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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
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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
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