Industrial Metal Bobbins - 10 Pack

Part Number: Singer 233939

Bobbin Specifications:

• Material: Durable steel (metal)
• Type: Closed-type bobbin
• Style: G style (uncommon bobbin class)
• No holes design
• Outside diameter: 21.1mm
• Thickness: 11.6mm
• Center hole diameter: 6.1mm
• 10 bobbins per pack
• Condition: New

Compatible Singer Industrial Models:

• Singer 51W series: 51W54, 51W55, 51W56, 51W57, 51W101
• Singer 52K, 52W
• Singer 112, 118W, 119W
• Singer 136W, 136W104, 138G, 138W
• Singer 167G, 167W, 168W
• Singer 211, 212
• Singer 236G, 236W

Compatible Consew Models:

• Consew 227, 228

Compatible Durkopp Adler Models:

• Durkopp Adler 541

Why Choose These Bobbins:

• High-quality steel construction for industrial durability
• Designed specifically for industrial sewing machines
• G style closed-type design for reliable performance
• Essential replacement parts for your industrial machine
• Uncommon bobbin class - hard to find elsewhere
• 10-pack provides excellent value

Keep your industrial sewing machine running smoothly with these durable steel bobbins. The Singer Part #233939 is a specialized G style closed-type bobbin designed for heavy-duty industrial applications. Perfect for garment factories, upholstery shops, and professional sewing operations.