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Norton® 1/2" X 5/8" - 11 X NO 103 Steel 66NS Short Retainer Nut (For Use With Air Cooled Back Up Pads And Fiber Discs)


Airgas Part #:NOR63642543463

Manufacturer Part #:63642543463

$14.83 /Each
Package Size Options
$14.83 Each
$148.30 Pack 10 Each / Pack

Item Details

  • Norton® 66NS 1/2" Dia Steel Short Retainer Nut with 5/8 - 11 right hand thread is ideal for Air-Cooled rubber back-up pad.


  • Designed for medium to heavy grinding applications
  • Slotted aluminum hub design draws cool air behind the disc
  • Curved ribs on the rubber face force heat away from the disc and Backing pad
  • Cooler cutting action reduces disc loading and increases grinding life
  • All pads have a 5/8"-11 threaded female hub for mounting
  • Medium pads offer great flexibility; hard pads provide more aggressive cut
  • Use with NORTON discs to maximize cut and life

Product Attributes

Accessory Type

» Retainer Nut


» Steel

Trade Name

» 66NS