Description
The GRACO 127938 is a nylon lock nut designed for use with M12 x 1.75 threaded fasteners. It is typically used as a secure fastening component in GRACO equipment, providing vibration resistance and preventing loosening under dynamic loads. The material is not explicitly stated for the GRACO-branded part, but similar nuts are commonly made from steel with a nylon insert.
Key Features:
- Nylon Insert Lock Nut
- M12 x 1.75
- Compatible with M12 x 1.75 threaded fasteners and GRACO equipment requiring this size
- Vibration resistance due to nylon insert
- Prevents loosening under dynamic loads
- Reliable fastening for critical equipment components
Applications:
Used as a secure fastening component in GRACO spray equipment and other machinery requiring vibration-resistant locking nuts.
Installation Notes:
- Using genuine GRACO parts ensures proper fit, performance, and reliability within GRACO equipment.
- Ensure threads are clean and undamaged before installation
- Hand-tighten the nut until snug, then use a wrench to secure, but avoid over-tightening to prevent damage to the nylon insert
- Replace the nut if the nylon insert is worn or damaged
- Regularly inspect for signs of wear or loosening
- Replace with genuine GRACO parts as needed






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