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

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Description & Features

Designed for hydraulic cylinder rod sealing applications, the AN Style Urethane Wiper Ring, 3.50 Inch Rod Diameter, 3.86 Inch Groove OD, Inch Groove Width is manufactured by Hercules Sealing Products in urethane construction. Urethane provides strong abrasion resistance and durability under the mechanical demands typical of reciprocating rod movement in hydraulic cylinders.

With a rod diameter of 3.497 inches and a groove OD of 3.864 inches, this wiper ring is sized for precise fitment in AN-style groove configurations. The operating temperature range of -65°F to 220°F makes it suitable for a wide range of industrial hydraulic service conditions. Suffix variants within this product group include a slotted heel design (SH), fluorocarbon material (V), and carboxylated nitrile material (B), offering flexibility for different fluid and environmental compatibility requirements.

SKU: AN-33

Supplier Part Number (MPN): AN-33

Alternate Part Numbers: C1CJ26, MI-00868132, MINO-00407X10028

Specifications

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

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Product Questions & Answers (3)

Question by: Gene Y on Mar 24, 2026, 8:10 PM
got a cylinder rod that measures 3.50, is this wiper the right size or am i gonna fight it?
Answer by: Customer Support on Mar 26, 2026, 7:38 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.
Question by: Rex C on Dec 11, 2025, 5:26 PM
Got a 3.50 inch rod on a hydraulic cylinder that needs a new wiper. This AN-33 the right fit for that?
Answer by: Customer Support on Dec 13, 2025, 5:03 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.
Question by: Dean W on Apr 17, 2025, 11:04 AM
So this is for keeping gunk off the cylinder rod, right? Just wanna make sure I'm understanding its purpose.
Answer by: Customer Support on Apr 18, 2025, 7:28 PM
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.