Norton 66261140500 Psa Abrasive Disc 120 Grit 5 Inch

Product Description

The NORTON 66261140500 is a pressure-sensitive adhesive (PSA) abrasive disc designed for use with PSA-style backing pads on disc sanders and random orbital sanders. This 5-inch disc uses a ceramic abrasive grain at 120 grit, a fine-grade cut that suits intermediate sanding stages where material removal and surface refinement are both required. The paper backing is B-weight, offering a balance of flexibility and support for contoured and flat surfaces. The disc attaches directly to a matching PSA pad without fasteners, making swap-outs fast during production work. Each pack contains 100 discs.

These discs are suited for metalworking, woodworking, and general fabrication applications where consistent finish quality is needed across high-volume jobs. The ceramic grain is self-sharpening under pressure, which extends disc life compared to aluminum oxide alternatives. The flexible paper backing conforms moderately to surface contours, making it useful on both flat stock and slightly irregular workpieces. This product is part of the Norton A975 series and is a common choice for professionals in metal finishing shops, cabinet shops, and general manufacturing environments.

Key Features

• 5-inch diameter PSA disc attaches to standard PSA backing pads without clips or hardware
• 120 grit ceramic abrasive grain provides fine-grade material removal with extended service life
• B-weight paper backing balances flexibility and support across flat and contoured surfaces
• No vacuum holes — suited for use without dust extraction at the disc interface
• Pack of 100 discs supports high-volume or production-rate workflows
• Part of the Norton A975 series for consistent grain and backing quality across the line

Compatibility

Designed for use with 5-inch PSA (pressure-sensitive adhesive) backing pads on disc sanders and random orbital sanders that accept PSA-style discs without vacuum hole patterns.

Installation Notes

Installation requires a clean, dry PSA backing pad — oil, dust, or worn adhesive on the pad will reduce disc adhesion and cause premature release during use. Ensure the sander is fully powered off and unplugged before mounting or removing discs. Align the disc centered on the backing pad and press firmly across the full surface to seat the adhesive. Worn or contaminated backing pads should be replaced before mounting new discs to maintain safe operation.