Part number: 11414002/ XND20T Part name: feed dog Suitable for Single needle jack sewing machine model number F5/F4/A2/A2s/A4/A3/A5 To buy suitable needle plate click �� 11414006 Needle plate for Jack F5/F4/A2 To download part book of F4 click �� JACK F4 To download part book of F5 click �� JACK F5 To download part book of A2sclick �� JACK A2S To download part book of A5 click �� JACK A5