P/N: 311
Category: Lighting
Flat-rate shipping. Choose Ground or a faster service at checkout.
Flat-rate shipping covers most parts. If your order turns out to need freight or special handling, we'll contact you with the updated shipping cost before it ships. You can pay the difference or cancel for a full refund. International buyers pay any duties and import taxes.
| Condition | Price | Stock |
|---|---|---|
| New Surplus | $1.00 | 142 Available |
Part 311 is a miniature aircraft lamp with a BA15s single-contact base designed for 28-volt DC systems. This S11 bulb operates at approximately 36 watts and provides external lighting for wing and tail positions. The lamp installs in approved light assemblies following MS25235/MS25237 series specifications.
Replacement should follow your aircraft's maintenance manual and wiring diagram to ensure compatibility with existing electrical systems and light fixture design. Verify part compatibility with your aircraft's Illustrated Parts Catalog before installation.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Part 311 is a miniature aircraft lamp with a BA15s single-contact base designed for 28-volt DC systems. This S11 bulb operates at approximately 36 watts and provides external lighting for wing and tail positions.
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.
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.
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 311.