The replacement tension assembly with part number MO301 has the following specifications:
- Base Diameter: Approximately 23/32 inch.
- Spring Action: It pulls up.
-Fits Riccar models 301Z, 303SS, 469FA, 504, 514, 580, 590, 601, 603, 608, 653, 663, 670, 693, 900, 1900, 701, 703, 753, 763, 793, 900, 6714, R1570, R1570FB, R250, R1900, R900, SZ702 - Necchi 3204FB, 3205FA.
-Fits Simplicity model SL6220.
-Fits White models 162, 165, 166, 167, 208, 219, 263, 265, 629, 670, 769, 764, 769, 844, 1315, 1620, 1630, 1655, 1665, 3851, FA69.