Danco 35773B Buna-n O-ring 1-11/16 X 1-7/8 In. Faucet Seal

Product Description

The DANCO 35773B is a Buna-N rubber O-ring used to seal faucets and other plumbing connections where water and abrasion resistance are required. Sized at 1-11/16 inches by 1-7/8 inches, this O-ring fits into groove seats found in faucet bodies, valve stems, and related plumbing assemblies. Buna-N (nitrile rubber) is a standard elastomer in plumbing applications because it resists water swell, maintains a reliable seal under repeated cycling, and holds up against mild abrasion. Sold individually in a bag, this part is a straightforward replacement for a degraded or damaged O-ring during faucet repair or valve service.

This O-ring is suited for residential and light commercial plumbing repair work. It is most commonly installed during faucet rebuilds, valve cartridge replacements, or any service call where a leaking stem or body seal is the root cause. The 1-11/16 inches by 1-7/8 inches cross-section sizing corresponds to standard O-ring groove dimensions found across a range of faucet and valve configurations. Plumbers and service technicians keep a range of Buna-N O-rings on hand for fast, cost-effective repairs without full fixture replacement.

Key Features

• Buna-N (nitrile rubber) construction resists water swell and abrasion
• Dimensions: 1-11/16 inches by 1-7/8 inches
• Black color; sold 1 per bag
• Suited for faucet repair, valve stems, and general plumbing sealing applications
• Lightweight at 0.006 pounds

Compatibility

Designed as an OEM-style replacement O-ring for faucet repair and general plumbing valve service where a 1-11/16 inches by 1-7/8 inches Buna-N seal is required.

Installation Notes

Installation is typically performed by a licensed plumber or experienced service technician. Shut off the water supply and relieve line pressure before disassembling the faucet or valve. Inspect the O-ring groove for scoring or buildup before seating the new O-ring, and avoid over-stretching the ring during installation to prevent premature failure. Work follows standard IPC and local plumbing code requirements for fixture service.

Technical Specifications

• Material: Buna-N (Nitrile Rubber)
• Inner Diameter: 1-11/16 inches
• Outer Diameter: 1-7/8 inches
• Color: Black
• Weight: 0.006 pounds
• Sold As: 1 per bag
• UPC: 00037155357734

Standard Information

• Brand: DANCO
• Manufacturer Part Number: 35773B