Bsc Preferred DIB20955 Slip Joint Washer Nut 1-1/2 in

Product Description

The BSC PREFERRED DIB20955 is a slip joint washer nut assembly used in drain line connections for plumbing applications. The assembly includes a 1-1/2 inch nut, a 1-1/2 inch washer, and a reducing washer that steps down from 1-1/2 inches to 1-1/4 inches. This combination allows a single part to serve both standard and reduced drain fittings without sourcing separate components. Licensed plumbers and skilled tradespeople typically install this hardware when servicing or assembling P-trap and slip joint drain assemblies under sinks and similar fixtures.

This washer nut assembly is suited for residential and light commercial plumbing drain work. It is commonly used when connecting slip joint drain components where a transition from 1-1/2 inch to 1-1/4 inch is needed. The reducing washer makes it practical for P-trap installations, sink basket drains, and similar above-floor drain fittings. It is sold individually, making it easy to stock for service calls or repair jobs requiring a single replacement fitting.

Key Features

• Includes 1-1/2 inch nut and 1-1/2 inch washer in a single assembly
• Built-in reducing washer transitions from 1-1/2 inches to 1-1/4 inches
• Suitable for slip joint drain connections in residential and light commercial plumbing
• Sold as individual unit for targeted repairs or service stock
• Lightweight at approximately 0.02 pounds

Compatibility

Designed as a standard replacement or service fitting for slip joint drain assemblies using 1-1/2 inch connections, with included reducing washer for 1-1/4 inch compatibility.

Installation Notes

Installation is typically performed by a licensed plumber or qualified tradesperson. Shut off water supply and clear standing water from the drain line before disassembly. Slip joint nuts should be tightened by hand first, then snugged with pliers - do not overtighten, as this can damage the washer seating surface. Work must comply with applicable local plumbing codes, which generally follow the International Plumbing Code (IPC).