The Lamp,incandescent, cataloged under National Stock Number 6240-01-509-3689, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Micro Lamps Inc.. Government technical data includes 10 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 | 6240-01-509-3689 |
| Primary Part Number | ML-83 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Micro Lamps Inc. |
| Status | ACTIVE |
| Filament Designation | C2R |
| Overall Diameter | 0.750 INCHES MAXIMUM IN |
| Base Style | DOUBLE CONTACT BAYONET PINLESS |
| Rated Average Life | HOURS |
| Bulb Diameter | 0.750 INCHES NOMINAL IN |
| Wire Lead Length | 0.250 INCHES NOMINAL IN |
| Bulb Style | B (ARBITRARY DESIGNATION) |
| Current Rating for Which Designed | 1.150 AMPERES NOMINAL |
| Voltage Rating | 6.500 VOLTS NOMINAL |
| Average Life Rating in Hours | 1200.0 |
| 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 |
|---|---|
| ML-83 PRIMARY | Micro Lamps Inc. (USA) |
NSN 6240-01-509-3689 is a Lamp,incandescent, manufactured by Micro Lamps Inc., classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-509-3689 has 1 manufacturer part number on file: ML-83 (Micro Lamps Inc.).
Key specifications for ML-83: Filament Designation: C2R; Overall Diameter: 0.750 INCHES MAXIMUM IN; Base Style: DOUBLE CONTACT BAYONET PINLESS; Rated Average Life: HOURS. 10 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.