The Lamp,light Emitting Diode, cataloged under National Stock Number 6240-01-657-5909, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Electrodynamics Inc Div L3harris Electrodynamics Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-01-657-5909 |
| Primary Part Number | ML1646-R121 |
| Item Name | Lamp,light Emitting Diode |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Electrodynamics Inc Div L3harris Electrodynamics Inc |
| Status | ACTIVE |
| Overall Diameter | 0.516 INCHES NOMINAL IN |
| Base Style | G19 (B1-PIN) |
| Bulb Diameter | 0.201 INCHES NOMINAL IN |
| Wire Lead Length | 0.315 INCHES MINIMUM AND 0.551 INCHES MAXIMUM IN |
| Emitted Light Characteristic | RED |
| Terminal Type and Quantity | 2 PIN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ML1646-R121 PRIMARY | Electrodynamics Inc Div L3harris Electrodynamics Inc (USA) |
NSN 6240-01-657-5909 is a Lamp,light Emitting Diode, manufactured by Electrodynamics Inc Div L3harris Electrodynamics Inc, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-657-5909 has 1 manufacturer part number on file: ML1646-R121 (Electrodynamics Inc Div L3harris Electrodynamics Inc).
Key specifications for ML1646-R121: Overall Diameter: 0.516 INCHES NOMINAL IN; Base Style: G19 (B1-PIN); Bulb Diameter: 0.201 INCHES NOMINAL IN; Overall Length: 0.985 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.