Norton 662611-55378 Sanding Disc 5 Inches A975 P320B Grit

Product Description

The NORTON 662611-55378 is a pressure-sensitive adhesive sanding disc designed for surface preparation and finishing work. Built to the A975 specification, this disc uses P320B grit — a fine abrasive suited for finish sanding, light material removal, and surface smoothing between coats. At 5 inches in diameter with no center hole, it mounts directly to a flat or non-vacuum backup pad. These discs are used by finishing contractors, auto body technicians, woodworkers, and industrial maintenance trades requiring consistent cut and finish at a fine grit level.

This disc is applicable across a range of dry sanding operations on wood, painted surfaces, composites, and similar substrates. The no-hole format makes it appropriate for solid backup pads where dust extraction through the disc is not required. The PSA backing allows quick, secure attachment and clean removal from compatible backup pads. Packaged and sold per unit, with a minimum order quantity of 100 discs, this product is suited for shop environments with steady volume consumption.

Key Features

• A975 disc type for consistent abrasive performance in finish sanding applications
• P320B grit rating — fine abrasive for smoothing and prep work between finishing stages
• 5-inch diameter, no-hole design for use with solid flat backup pads
• Pressure-sensitive adhesive backing for fast pad mounting and clean removal
• Sold per unit with a minimum order quantity of 100 — suited for high-volume shop use

Compatibility

Designed for use with 5-inch solid flat PSA backup pads that accept no-hole sanding discs. No specific equipment models were identified in the available product data.

Installation Notes

Ensure the backup pad surface is clean and free of adhesive residue before applying a new disc. Press the disc firmly onto the pad from the center outward to eliminate air pockets and ensure full adhesion. Operate within the RPM rating of both the backup pad and the abrasive disc. Inspect the disc for wear, loading, or tearing before each use and replace as needed.

Technical Specifications

• Disc Type: A975
• Grit: P320B
• Diameter: 5 inches
• Hole Configuration: No Hole
• Backing Type: Pressure-Sensitive Adhesive (PSA)
• Unit of Measure: Each
• Minimum Order Quantity: 100

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 662611-55378