Singer 347K repair parts.  Bobbin case #155502 which includes bobbin case #152082-001, tension spring #172202 and screws #1172(806) & 1173(805). Plus bobbin (Singer 66 type bobbin).  Fits Singer models: 240 series, 240, 247, 250 series, 252, 257, 258, 259, 347, 348, 350, 360, 362, 367, 368, 401, 403, 404, 413, 416, 417, 418, 457, 466, 476, 477, 478, 500, 503, 714 (school), 717 (school), 719.
Price includes shipping.