The Fabco 688-0697-004 or 6880697004 is a hex flanged self-locking nut with a 1-1/2-12 thread, meaning a 1-1/2 inch nominal diameter with 12 threads per inch. The integral flange spreads clamp load over a wider surface so a separate washer is not needed, and the self-locking feature resists loosening under vibration. Fabco builds transfer cases, PTO units, and steerable drive axles, and this is a genuine OEM fastener for those assemblies. Not sure this is your part? Give us a call to confirm proper fit for your application. Sold by Pro Gear and Transmission.
Features
Genuine OEM Fabco fastener, part number 688-0697-004 or 6880697004
Thread size 1-1/2-12: 1-1/2 inch nominal diameter, 12 threads per inch
Hex flanged design distributes clamp load without a separate washer
Self-locking to resist loosening under vibration
Used on Fabco transfer case, PTO, and steerable drive axle assemblies
Tech Specs
- Thread size: 1-1/2-12 (1-1/2 in. nominal diameter, 12 threads per inch)
- Head style: Hex flanged
- Type: Self-locking nut
- Brand: Fabco
- UPC: 193174382673