NISSAN 28219-50Y05 Antenna Retaining Nut

This genuine Nissan (OEM: 28219-50Y05) antenna retaining nut is a premium quality OEM component designed to securely and stably fasten the antenna assembly to the vehicle body. Thanks to precise factory manufacturing tolerances, it guarantees an exact fit and dependable fastening.

Technical Features and Functions

The primary function of the antenna retaining nut is to firmly secure the antenna base to the roof panel or fender. Proper fastening is essential for the following reasons:

• Sealing Support: By providing adequate clamping force, the nut helps compress the rubber gasket on the antenna base, preventing rainwater from penetrating into the passenger compartment or behind the headliner.
• Electrical Grounding: It ensures metallic contact between the antenna base and the vehicle body, which is critical for proper radio frequency signal reception and interference suppression.
• Vibration Resistance: It prevents the antenna assembly from loosening under aerodynamic drag and vehicle vibrations.

Technical Specifications

• Manufacturer: NISSAN (Genuine OEM Part)
• Part Number: 28219-50Y05
• Product Type: Antenna Retaining Nut
• Material: High-strength steel with corrosion-resistant coating

Signs of Failure or Wear

Although the retaining nut is a durable part, replacement may be required in the following situations:

• Corrosion: Moisture ingress can cause the nut to rust, weakening its structural integrity and impairing proper grounding.
• Thread Damage: Improper installation or over-torquing can strip the threads, preventing the nut from maintaining proper tension.
• Water Leaks or Signal Degradation: If the nut loosens, the seal will fail to compress properly, leading to water intrusion and reduced radio reception quality.