SSewing Machine Parts Atlas Evidence-first reference

OEM PART · stitch control

172137 Disc cover-plate spring, left

Documented for Singer 328K

Review complete

Documented model fitments

Singer 328K
singer-328k
Confirmed document row · independently blind-reviewed · PDF page 3 · Numerical List of Parts — disc cover spring rowList of Parts — Machine No. 328K · external source, link-only

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