LIGHT (P/N ms25331-4) - New Surplus
P/N: ms25331-4
Category: Lighting
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 1 Available |
Product Description
The MS25331-4 is a press-to-test indicator light assembly for aircraft instrument panels. This MIL-SPEC component mounts in a standard 5/8-inch hole and accepts a miniature bayonet T-3 1/4 lamp for annunciation functions. Used on cockpit control and warning panels to display system status, alerts, and operational conditions.
Installation requires matching the lamp voltage to system specifications and following the applicable aircraft wiring diagram and maintenance manual for proper circuit integration.
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.
Frequently Asked Questions
What is the LIGHT (P/N ms25331-4)?
The MS25331-4 is a press-to-test indicator light assembly for aircraft instrument panels. This MIL-SPEC component mounts in a standard 5/8-inch hole and accepts a miniature bayonet T-3 1/4 lamp for annunciation functions.
Is the ms25331-4 a PMA or OEM part?
The LIGHT 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 ms25331-4 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 LIGHT. We stock related hardware and can help identify companion parts.
Can the ms25331-4 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 ms25331-4.
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