Terex
Jam Nut for Terex BT4792
This jam nut features a 3/8-16NC thread specification and is designed for use in the tool circuit valve assembly of the Terex BT4792.
Parts diagram
Compatible models
Specifications
- Part number
- 221-02002
- Brand
- Terex
The 221-02002 jam nut serves as a critical fastening component within the tool circuit valve assembly of the Terex BT4792 crane. This component is engineered with a 3/8-16NC thread, featuring a 3/8-inch nominal diameter and 16 threads per inch in the National Coarse standard. The nut is finished with a plating to assist in environmental resistance during operation.
This component is specifically intended for fitment on the Terex BT4792 model. It functions as a thinner profile nut compared to standard hex nuts, allowing it to be used as a secondary locking element. By tightening this nut against a primary fastener or component, it creates the necessary thread friction to prevent loosening caused by machine vibration or dynamic loads. This locking action is vital for maintaining the stability of hydraulic tool circuit connections and ensuring that valve assemblies remain correctly positioned during the operational cycles of the crane.

