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AN Style Urethane Wiper Ring, 3.50 Inch Rod Diameter, 3.86 Inch Groove OD, Inch Groove Width

Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Groove O.D. B 3.86	Rod Diameter A 3.50	Supplier Part Number AN-33	Product Weight 0.02 lbs	Alternate Part Numbers Alternate Part Number C1CJ26, Alternate Part Number MI-00868132, Alternate Part Number MINO-00407X10028

Product Questions & Answers 3

Product Questions & Answers

got a cylinder rod that measures 3.50, is this wiper the right size or am i gonna fight it?

Question by: Gene Y on Mar 24, 2026, 8:10 PM

The key dimensions on this wiper ring are a 3.497 inch rod diameter and a 3.864 inch groove OD, and it is meant for an AN style groove. If your rod is right around 3.50 inches and the gland matches that AN style groove OD, this part is sized to be a precise match.

Answer by: Customer Support on Mar 26, 2026, 7:38 PM

Got a 3.50 inch rod on a hydraulic cylinder that needs a new wiper. This AN-33 the right fit for that?

Question by: Rex C on Dec 11, 2025, 5:26 PM

For a 3.50 inch rod, yes, this one lines up well. The actual rod diameter spec is 3.497 inches, and the groove OD comes in at 3.864 inches, so it's built for AN-style groove configurations at that size. Urethane construction holds up well against the kind of abrasion you get with reciprocating rod movement, which is exactly what wiper rings take the most punishment from.

Answer by: Customer Support on Dec 13, 2025, 5:03 PM

So this is for keeping gunk off the cylinder rod, right? Just wanna make sure I'm understanding its purpose.

Question by: Dean W on Apr 17, 2025, 11:04 AM

Designed to provide strong abrasion resistance, this urethane wiper ring is constructed to keep contaminants out of your hydraulic cylinder. The material stands up well to the constant movement of the rod.

Answer by: Customer Support on Apr 18, 2025, 7:28 PM

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