The Lamp,incandescent, cataloged under National Stock Number 6240-00-600-7138, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-00-600-7138 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSPARENT |
| Filament Designation | C-6 |
| Rated Average Life | NOT RATED |
| Bulb Designator | T-3 |
| Filament Heavy Duty Service Rating | NOT RATED |
| Emitted Light Characteristic | COLORLESS |
| Light Output Rating | 250.000 FOOTCANDLES NOMINAL SINGLE RATING |
| Bulb Style | T (TUBULAR) |
| Current Rating for Which Designed | 0.550 AMPERES NOMINAL |
| Voltage Rating | 12.000 VOLTS NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-L-4042PAR3-8-1 | 2/2 Government specification standardization U.S. Government activity |
| 5405B | 5/1 Secondary reference Burton Medical Products Corporation |
NSN 6240-00-600-7138 is a Lamp,incandescent, classified under FSC 6240, Electric Lamps. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2640-01-531-5124. Verify interchangeability with system specifications before substitution.
Key specifications for 6240-00-600-7138: Bulb Light Transmission Characteristic: TRANSPARENT; Filament Designation: C-6; Rated Average Life: NOT RATED; Bulb Designator: T-3. 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.