HRU15-1.00-15 Buna-N 80 Duro U-Seal 1"ID X 1-5/16"OD X 5/32"HT

The desired outcome is a dependable hydraulic seal that helps prevent leakage, reduce downtime, and keep equipment operating with less hassle. This HRU15-1.00-15 Buna-N 80 Duro Homogeneous U-Seal is made for hydraulic repair, cylinder service, and industrial sealing applications where a compact, oil-resistant U-Seal is needed.

Made from Buna-N Nitrile 80 durometer black rubber, this seal provides a firmer sealing profile than standard 70 durometer Buna-N. That added hardness helps improve extrusion resistance and durability in hydraulic systems while still offering the flexibility needed for reliable sealing performance.

Operating Temperature

Operating temperature: -40° to +225°F (–40° to +107°C)

Material & Performance Details

Buna-N, also called Nitrile or NBR, is a proven sealing material for petroleum-based oils, hydraulic fluids, grease, and general industrial service. The 80 durometer NBR N8010Z compound gives customers a strong balance of oil resistance, abrasion resistance, compression set resistance, and dependable wear performance.

Chemical compatibility:

• Excellent resistance to:
  • Petroleum-based hydraulic oils
  • Mineral oils
  • Grease
  • Diesel fuel
  • Air
  • Water-based hydraulic fluids
  • Mild chemicals
• Limited capability with:
  • Aromatic hydrocarbons
  • Some synthetic lubricants
  • Outdoor ozone exposure
  • Long-term weathering and UV exposure
• Not compatible with:
  • Ketones
  • Strong acids
  • DOT brake fluids
  • Phosphate ester hydraulic fluids
  • Chlorinated hydrocarbons

Sizes & Measurements

• Dimensions: 1"ID X 1-5/16"OD X 5/32"HT
• Actual: 1.000"ID X 1.312"OD X 0.156"HT
• Cross Reference Actual: 1.000"ID X 1.311"OD X 0.154"HT X 0.185" lip/profile
• Metric: 25.40mm ID X 33.32mm OD X 3.90mm HT
• Part Number: HRU15-1.00-15
• Profile Cross Reference: N23, DICHTOMATIK U-Ring N23
• Material Reference: 80 NBR N8010Z
• AS568 Dash Number: Not applicable

Applications & Use Cases

This Buna-N 80 Duro U-Seal is commonly used in hydraulic cylinders, shop equipment, agricultural equipment, mobile equipment, presses, pneumatic repair, and general industrial fluid power systems. It is a good choice when the application uses petroleum-based hydraulic oil and the customer needs a compact seal that helps control leakage and restore cylinder performance.

Key Specifications

• Material: Buna-N Nitrile, NBR
• Durometer: 80 Shore A
• Color: Black
• Seal Style: Homogeneous U-Seal / Symmetric U-Ring
• Profile: N23
• Material Code: N8010Z
• Certifications: None listed
• Temperature Range: -40° to +225°F (–40° to +107°C)
• Pressure Rating: Application dependent, based on gland design, clearance gap, fluid, temperature, and system pressure

Why Buy from The O-Ring Store LLC

At The O-Ring Store LLC, we make getting O-Rings and seals easy. Our ISO9001:2015 certified quality processes help customers get consistent products, clear information, and dependable service. We stock many hydraulic seals in the USA for fast delivery, offer same-day shipping on in-stock items, and can help with custom sizes when a standard seal does not solve the problem.

Customers also get full lot traceability and documentation on request, experienced technical support, and competitive pricing without sacrificing quality. The value is simple: faster answers, fewer ordering mistakes, less downtime, and a better sealing solution from a team that cares about getting it right.

FAQs

1. What is the HRU15-1.00-15 U-Seal used for?
This seal is used in hydraulic cylinders and fluid power equipment where a 1" ID Buna-N U-Seal is needed for oil-resistant sealing service.

2. Is Buna-N 80 Duro good for hydraulic oil?
Yes. Buna-N Nitrile is commonly used with petroleum-based hydraulic oils, mineral oils, and grease. The 80 durometer hardness adds firmness and helps improve extrusion resistance.

3. Does this seal cross-reference to an N23 profile?
Yes. Based on the supplied profile information, this seal cross-references to the N23 DICHTOMATIK U-Ring style.