Part number: B1212-372-000/B1211-372-000 Part name: Disc powl Suitable for button stitching machine model number MB 372 AND MB 373 To buy its screw click  B1213-372-000/NS-6150430-SP To download part book of MB373 click  JUKI MB-373 To download part book of MB372 click  JUKI MB-372