The Light,indicator, cataloged under National Stock Number 6340-01-681-8451, is classified within Federal Supply Class 6340 (Aircraft Alarm and Signal Systems) of the Alarm, Signal, and Security Detection Systems group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6340-01-681-8451 |
| Item Name | Light,indicator |
| FSC / FSG | 6340 / 63 — Aircraft Alarm and Signal Systems |
| Status | ACTIVE |
| Lens Type | FLAT, ROUND SINGLE LIGHT FIRST POSITION HORIZONTAL |
| Lens Color | WHITE SINGLE LIGHT FIRST POSITION HORIZONTAL |
| Overall Diameter | 0.781 INCHES NOMINAL IN |
| Lens Light Transmission Characteristic | OPAQUE SINGLE LIGHT FIRST POSITION HORIZONTAL |
| Lens Face Surface Condition | SMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL |
| Lens Quantity | 1 |
| Mounting Method | SCREW ON LENS |
| Mounting Method | THREADED HUB LOCATION NOT OTHERWISE SPECIFIED |
| Style Designator | ROUND FRAME, ROUND LENS TYPE |
| Features Provided | ROHS DIRECTIVE COMPLIANCE |
| Lamp Base Type Accommodated | WIRE TERMINALS, DOWN |
| Transmitted Light Color | WHITE SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A |
| Current Rating in Amps | 0.016 SINGLE |
| Lamp Type Accommodated and Quantity | 1 LIGHT EMITTING DIODE |
| Panel Thickness for Which Designed | 0.156 INCHES NOMINAL IN |
| Material | PLASTIC POLYCARBONATE BODY |
| Material | PLASTIC POLYCARBONATE LENS |
| Panel Accommodation Hole Diameter | 0.6875 INCHES NOMINAL IN |
| Terminal Type and Quantity | 2 WIRE LEAD |
| Voltage Rating in Volts | 5.0 DC NOMINAL |
| Hazardous Locations/environmental Protection | WATERTIGHT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 557-1002-203F | 3/2 Design control — primary reference U.S. Government activity |
NSN 6340-01-681-8451 is a Light,indicator, classified under FSC 6340, Aircraft Alarm and Signal Systems. Status: active.
Key specifications for 6340-01-681-8451: Lens Type: FLAT, ROUND SINGLE LIGHT FIRST POSITION HORIZONTAL; Lens Color: WHITE SINGLE LIGHT FIRST POSITION HORIZONTAL; Overall Diameter: 0.781 INCHES NOMINAL IN; Lens Light Transmission Characteristic: OPAQUE SINGLE LIGHT FIRST POSITION HORIZONTAL. 21 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.