LAMP (P/N 73) - New Surplus

Part 73 is a miniature incandescent lamp for aircraft instrument panel illumination. This lamp provides backlighting for gauges, annunciators, and indicator assemblies in the cockpit electrical system. Typically specified under MS25237 standards, it installs directly into designated sockets within instrument bezels and panel-mounted assemblies.

Verify voltage, base type, and wattage against your aircraft's maintenance documentation and Illustrated Parts Catalog before installation. Common in general aviation and business aircraft for reliable, consistent instrument visibility during flight operations.

What is the LAMP (P/N 73)?

Part 73 is a miniature incandescent lamp for aircraft instrument panel illumination. This lamp provides backlighting for gauges, annunciators, and indicator assemblies in the cockpit electrical system.

Is the 73 a PMA or OEM part?

The LAMP may be available as an OEM (Original Equipment Manufacturer) or PMA (Parts Manufacturer Approval) part depending on condition and source. Both carry FAA certification for airworthiness. Currently available in: New Surplus. Contact us for sourcing details.

Does the 73 include installation hardware?

Installation hardware requirements vary by application. Check your aircraft's Structural Repair Manual (SRM) or Illustrated Parts Catalog (IPC) for the complete installation kit requirements for the LAMP. We stock related hardware and can help identify companion parts.

Can the 73 be shipped internationally?

Yes, we ship airframe components worldwide. International orders typically arrive within 3-14 business days depending on destination. Export documentation and customs forms are included. Contact us for international shipping quotes on the 73.