This Spool Pin Fits Singer Sewing Machines 1+, 8500Q, 8748, 8763, 8770 (Curvy), 8780 (Curvy), FQ4, Futura 5, Futura Quartet, One, SEQS6000, SEQS6700, XL400, XL420, XL550, XL580. Singer Sewing Machine National Warranty Center.
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