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Style PSC Polyurethane Double-Acting Piston Seal, 6.00 Inch Bore Diameter, 5.52 Inch Groove Diameter, Inch Groove Width

Description & Features

This Style PSC Polyurethane Double-Acting Piston Seal is designed for a 6.00-inch bore and a 5.52-inch groove diameter.

Manufactured by Hercules Sealing Products, this piston seal features a 95A polyurethane seal and a 70A nitrile energizer, ensuring reliable performance within a pressure range of 0 to 5,000 PSI and a temperature range of -65°F to 220°F. It accommodates a piston diameter of 5.999 inches, with a bore tolerance of +0.004/-0 inches and a groove width tolerance of +0.006 / -0 inches. The seal height measures 0.5 inches.

SKU: PSC-433-WB

Supplier Part Number (MPN): PSC-433-WB

Alternate Part Numbers: C1GG38

Specifications

Bore 6	Bore Tolerance (in) +0.004/-0	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Groove Dia. E 5.52	Groove Width Tolerance (in) +0.006 / -0	Piston Dia. F 6.00	Piston Dia. Tolerance (in) +0/-0.004	Seal Height B 0.50	Supplier Part Number PSC-433-WB	Alternate Part Numbers Alternate Part Number C1GG38	Product Weight 0.09 lbs

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 Double-Acting Piston Seal	1.5	0.15	1.254	1.498	+0.002/-0	+0.005 / -0	+0/-0.002
PSC-218-WB Double-Acting Piston Seal	1.5	0.265	1.254	1.498	+0.002/-0	+0.005 / -0	+0/-0.002
PSC-326 Double-Acting Piston Seal	2	0.255	1.625	1.998	+0.002/-0	+0.005 / -0	+0/-0.002
PSC-326-WB Double-Acting Piston Seal	2	0.37	1.625	1.998	+0.002/-0	+0.005 / -0	+0/-0.002
PSC-330 Double-Acting Piston Seal	2.5	0.255	2.125	2.498	+0.002/-0	+0.005 / -0	+0/-0.002
PSC-334 Double-Acting Piston Seal	3	0.255	2.624	2.997	+0.002/-0	+0.005 / -0	+0/-0.004
PSC-334-WB Double-Acting Piston Seal	3	0.37	2.624	2.997	+0.004/-0	+0.005 / -0	+0/-0.004
PSC-338 Double-Acting Piston Seal	3.5	0.255	3.125	3.498	+0.004/-0	+0.005 / -0	+0/-0.004
PSC-342 Double-Acting Piston Seal	4	0.255	3.625	3.998	+0.004/-0	+0.005 / -0	+0/-0.004
PSC-342-WB Double-Acting Piston Seal	4	0.37	3.625	3.998	+0.004/-0	+0.005 / -0	+0/-0.004
PSC-350 Double-Acting Piston Seal	5	0.255	4.636	4.999	+0.004/-0	+0.005 / -0	+0/-0.004
PSC-433-WB Double-Acting Piston Seal	6	0.5	5.521	5.999	+0.004/-0	+0.006 / -0	+0/-0.004

Product Questions & Answers (3)

Question by: Kent C on Mar 2, 2026, 6:33 PM

got a cylinder with a 6 inch bore. is this PSC seal the right size for that, or am i gonna be fighting it?

Answer by: Customer Support on Mar 4, 2026, 6:27 PM

For a 6.00 inch bore, the sizing lines up with a 5.999 inch piston diameter and a 5.521 inch groove diameter. Bore tolerance is +0.004/-0 and the piston diameter tolerance is +0/-0.004, so it is meant to fit a piston right at 5.999 in a 6.00 in bore with that groove.

Question by: Howard G on Feb 22, 2026, 3:49 PM

Got a cylinder with a 6-inch bore that needs a new piston seal. This one rated to handle that, or am I barking up the wrong tree?

Answer by: Customer Support on Feb 24, 2026, 6:14 AM

For a 6.00-inch bore, this is the right fit. The piston diameter it's built around is 5.999 inches, with a bore tolerance of +0.004 / -0 inches, so it seats properly without slop. Keep in mind the groove dimensions matter too. The groove diameter needs to be 5.521 inches and groove width tolerance runs +0.006 / -0. Get those right and you're in good shape.

Question by: Marvin C on Dec 27, 2025, 7:14 AM

What's the temperature range on this seal? Need something that can handle both hot summers and cold winters here in Oklahoma.

Answer by: Customer Support on Dec 28, 2025, 6:05 PM

This seal can handle temperatures ranging from -65°F to 220°F.