This replacement bobbin case latch spring (part # 210736) is designed for Singer Featherweight and Model 301 bobbin cases. This small but essential component keeps the bobbin case latch securely closed, preventing the bobbin case from accidentally opening during sewing.

Specifications:

• Part Number: 210736
• Type: Replacement
• Function: Secures bobbin case latch
• Works with bobbin cases 45750 and 45751

Machine Compatibility:

Singer 221 Featherweight: Fits all variations of the standard model

Singer 222 Featherweight: Fits the 222 Free-Arm "Free-Motion" models

Singer Model 301: Fits Model 301 and 301A