Danco 35739B Buna-n O-ring 1-5/16 X 1-1/2 in Faucet Repair

Product Description

The DANCO 35739B is a Buna-N rubber O-ring designed for faucet repair and general plumbing service applications. Measuring 1-5/16 inches by 1-1/2 inches, this black O-ring provides reliable sealing performance in wet environments. Buna-N (nitrile) rubber is a standard material choice for water-service O-rings because of its resistance to abrasion and water swell. The part is sold individually and is a common consumable stocked by plumbers and repair technicians for routine fixture maintenance.

This O-ring is suited for residential and light commercial faucet repair work, including stem seals and valve body sealing applications where a 1-5/16 inch by 1-1/2 inch cross-section is required. Its black Buna-N construction makes it appropriate for cold and warm water service lines. Plumbers, pipefitters, and experienced DIYers typically keep a selection of standard O-ring sizes on hand for service calls, and the 35739B covers a commonly encountered size in faucet and fixture repair.

Key Features

• Buna-N (nitrile) rubber construction resists abrasion and water swell
• Dimensions: 1-5/16 inches by 1-1/2 inches
• Black color; standard O-ring profile
• Sold individually, packaged one per bag
• Suitable for faucet repair and general plumbing sealing applications

Compatibility

Designed as an OEM-style replacement O-ring for faucet stems and valve bodies requiring a 1-5/16 inch by 1-1/2 inch Buna-N seal.

Installation Notes

Installation is performed by licensed plumbers or qualified service technicians. Shut off the water supply to the fixture before removing any valve components. Inspect the seating surface for scoring or corrosion before installing the new O-ring, as a damaged seat will shorten seal life. Lightly lubricate the O-ring with a water-safe plumber's grease before seating to reduce installation stress on the rubber.

Technical Specifications

• Material: Buna-N (nitrile) rubber
• Color: Black
• Inner Dimension: 1-5/16 inches
• Outer Dimension: 1-1/2 inches
• Weight: 0.008 pounds
• Quantity per Package: 1

Standard Information

• Brand: DANCO
• Manufacturer Part Number: 35739B