Danco 35737B Buna-n O-ring 1 in X 1-3/16 in Faucet Repair

Product Description

The DANCO 35737B is a Buna-N rubber O-ring used in faucet repair and general plumbing sealing applications. Measuring 1 inch inner diameter by 1-3/16 inch outer diameter, this black elastomeric seal is designed to resist abrasion and water swell under normal service conditions. Buna-N, also known as nitrile rubber, is a standard material choice for water-contact seals in residential and light commercial plumbing. Plumbers and experienced DIYers install this type of O-ring when rebuilding faucets, valves, or other water-handling assemblies that require a reliable compression seal. Sold individually, one ring per bag.

This O-ring is suited for faucet repair and other general plumbing sealing tasks where a 1 inch by 1-3/16 inch nitrile seal is required. Typical applications include stem packing, cartridge seats, and valve body seals in residential plumbing fixtures. The Buna-N material performs well in cold and hot water service, making it a practical choice for both supply and drain-side repair work in kitchens, bathrooms, and utility areas.

Key Features

• Buna-N nitrile rubber construction resists abrasion and water swell
• 1 inch inner diameter by 1-3/16 inch outer diameter for precise fitment
• Black color for easy identification in standard plumbing O-ring applications
• Sold as a single unit per bag for targeted repair work
• Suitable for faucet repair, valve stems, and general water-contact sealing

Compatibility

Designed as an OEM-style replacement O-ring for residential faucets and plumbing valves requiring a 1 inch by 1-3/16 inch Buna-N seal.

Installation Notes

A licensed plumber or qualified DIYer can install this O-ring as part of a faucet or valve rebuild. Shut off the water supply and relieve line pressure before disassembling any valve or faucet body. Lightly lubricate the O-ring with a plumbing-grade silicone grease before seating it to prevent tearing during assembly. Follow local plumbing code requirements, including IPC guidelines, when performing fixture repairs.

Technical Specifications

• Material: Buna-N nitrile rubber
• Inner Diameter: 1 inch
• Outer Diameter: 1-3/16 inches
• Color: Black
• Weight: 0.007 pounds
• Sold As: 1 per bag

Standard Information

• Brand: DANCO
• Manufacturer Part Number: 35737B