Verified bobbin record
SINGER Class 15 Transparent Bobbin
Class 15 transparent
SINGER says Class 15 transparent and Class 15J bobbins are not interchangeable; use the class named for the machine.
Compatible machines in the catalog
This table is limited to the verified records published by SewFitGuide. Follow the official source for the manufacturer's full current list.
| Machine | Relationship | Status | Scope note |
|---|---|---|---|
| SINGER Heavy Duty 4423 | Officially compatible | CONFIRMED | United States and United Kingdom |
| SINGER 4411 | Officially compatible | CONFIRMED | United Kingdom |
| SINGER Heavy Duty 4432 | Officially compatible | CONFIRMED | United Kingdom |
| SINGER Heavy Duty 4452 | Officially compatible | CONFIRMED | United Kingdom |
| SINGER 5511 | Officially compatible | CONFIRMED | United Kingdom |
| SINGER 5523 | Officially compatible | CONFIRMED | United Kingdom |
| SINGER 5532 | Officially compatible | CONFIRMED | United Kingdom |
| SINGER Simple 3223 | Officially compatible | CONFIRMED | United Kingdom |
| SINGER Simple 3232 | Officially compatible | CONFIRMED | United Kingdom |
Part numbers and identifiers
| Number | Brand | Type |
|---|---|---|
D2134 | SINGER | Current product SKU |
Identification and exceptions
A transparent plastic Class 15 bobbin with flat top and bottom surfaces.
- Do not substitute Class 15 metal or Class 15J bobbins where SINGER specifies Class 15 transparent.
Related guide
Class 15 vs Class 15J bobbins explains why these similar-looking SINGER bobbin types are not interchangeable.
Sources
- SINGER 15 Class Plastic Bobbins 10-PackSINGER UK · Official accessory compatibility page · Tier 2
- How do I choose the right Singer bobbin?SINGER Support · Official support guide · Tier 2
- SINGER Heavy Duty 4423 Sewing MachineSINGER · Official machine product page · Tier 2
Last checked: August 2026. See how SewFitGuide verifies compatibility.