221175 Check Spring = (10689), (H4713C8001), (151011-001)…

Industry Standard Check Spring 

Part number 221175.

Also know as 10689, H4713C8001, 151011-001, 31H1-008F2, H47B008, B3128-051-000

This Check Spring is used widely though out the industry.

Especially on single needle, needle feed walking foot sewing machines.

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