Eppendorf D5 SPRING WASHER 5720411443

The Eppendorf D5 spring washer (part number 5720411443) is an original-equipment spare sold for use in Eppendorf laboratory instruments. It is a spring/lock-style washer intended to provide elastic preload and to help retain threaded fasteners in assemblies. Its primary use is as a replacement/repair component during maintenance of Eppendorf devices (for example pipettes, centrifuges and other instruments that specify a D5 washer).

Key Features:

• Manufacturer: Eppendorf (OEM spare part).
• Manufacturer part number: 5720411443.
• Part type: Spring (lock) washer — D5 size designation.
• Intended application: replacement/repair part for Eppendorf laboratory instruments.

Advantages:

• OEM part ensures correct fit and compatibility with Eppendorf assemblies, preserving original tolerances and performance.
• Spring-washer function maintains axial preload and reduces the risk of threaded fasteners loosening from vibration or thermal cycling, improving mechanical reliability.
• Small, low-cost spare enables straightforward field repairs or component replacement without changing larger assemblies, supporting faster maintenance turnaround.