


Sandvik / Tamrock
550 903 79 Nut, Lock
DC301R
| Part Number | 550 903 79 |
| Description | Nut, Lock |
| Brand | Sandvik (Tamrock) |
| Assembly | ELECTRIC LAY-OUT DRAWING |
| Type | Drill Rig Spare Part |
Quick answer
550 903 79 (also written 55090379, 550-903-79, or 550.903.79) is a Sandvik nut, lock spare part used in the ELECTRIC LAY-OUT DRAWING assembly of the Sandvik DC122R. Verified compatible with 3 Sandvik machine models including DC122R, DC301R, DC302R. Available as an aftermarket replacement drill part from BK Drilling — Turkey-based Sandvik and Epiroc spare parts supplier serving mining contractors worldwide. Quote on request via WhatsApp; typical lead time 3-7 days for stock items.
Part code alternate forms: 55090379, 550 903 79, 550-903-79.
Compatible machines
3
OEM cross-reference
550 903 79
About Sandvik 550 903 79 Nut, Lock
Designed for the demanding environment of the Sandvik DC122R, this fastening component secures critical elements within the ELECTRIC LAY-OUT DRAWING. Mining equipment fasteners are subject to strict torque specifications and material requirements to maintain structural safety during operation.
This is an OEM-compatible aftermarket replacement part for the Sandvik DC122R (DC122R). Also compatible with Tamrock branded equipment of the same model series. BK Drilling supplies this part with fast worldwide shipping and competitive pricing.
Frequently asked questions
Why use OEM-compatible parts for Sandvik drilling equipment?
OEM-compatible parts are manufactured to the same dimensional tolerances and material specifications as original components, ensuring proper fit, reliable performance, and maintaining the designed safety margins of the drilling machine.


