Singer 321C 131M-04 Instruction Manual page 26

Cloth plate slider cover
Cloth plate cover spring
Cloth plate lower plate
Washer
Upper looper sealing plate
Upper looper sealing plate washer
12 Screw
1S Screw --
r4 Screw ---
re Screw ---
w Screw ---
co Screw ---
21 Screw ---
23 Cloth plate ---
24 Cloth plate lower plate ---
25
Rubber bushing
---
High Speed Overlock Machine | Instructions Manual and Parts List 23