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Cotton Fabric & Rubber Piston Cup, 4.00 Inch Bore, 0.63 Inch Height, 5/32 Inch Thick

Description & Features

This Hercules Sealing Products piston cup is manufactured from cotton fabric and rubber for dependable sealing performance in hydraulic cylinders. It is suitable for use in systems with pressures from 0 to 3000 PSI and temperatures ranging from -65° to 220°F.

This 4.00-inch bore Cotton Fabric & Rubber Piston Cup has a height of 0.63 inches and a thickness of 5/32 inch.

SKU: 9400-000F

Supplier Part Number (MPN): 9400-000F

Alternate Part Numbers: C1CC63

Specifications

Bore 4	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Height 0.63	Supplier Part Number 9400-000F	Thickness (in) 5/32	Alternate Part Numbers Alternate Part Number C1CC63	Product Weight 0.14 lbs

Similar Products

Model Number	Bore	Height	Thickness (in)
9125-000F Fabric & Rubber Piston Cup	1.25	0.4375	3/32
9150-000F Fabric & Rubber Piston Cup	1.5	0.5	1/8
9200-000F Fabric & Rubber Piston Cup	2	0.5	1/8
9250-000F Fabric & Rubber Piston Cup	2.5	0.5	1/8
9300-000F Fabric & Rubber Piston Cup	3	0.625	5/32
9400-000F Fabric & Rubber Piston Cup	4	0.625	5/32

Product Questions & Answers (2)

Question by: Larry S on Apr 27, 2025, 9:39 PM

Got a 4-inch bore cylinder that needs a new piston cup, this one rated to handle 3000 PSI?

Answer by: Customer Support on Apr 29, 2025, 2:23 PM

Rated from 0 to 3000 PSI, so yes, that pressure range covers most standard hydraulic cylinder applications. The cup measures 4.00 inches in bore, 0.63 inches tall, and 5/32 inch thick, so just make sure those dimensions line up with your cylinder before ordering.

Question by: Dale M on Sep 5, 2025, 12:56 PM

Reckon this piston cup will hold up in a hydraulic system pushing 2800 PSI?

Answer by: Customer Support on Sep 7, 2025, 7:39 AM

With a pressure range from 0 to 3000 PSI, this Hercules Sealing Products piston cup is suitable for systems operating at 2800 PSI.