The Lamp,incandescent, cataloged under National Stock Number 6240-00-263-0549, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6240-00-263-0549 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSPARENT |
| Base Style | TELEPHONE SLIDE NUMBER ONE |
| Rated Average Life | NOT RATED |
| Filament Heavy Duty Service Rating | NOT RATED |
| Wattage Rating | 0.300 WATTS |
| Emitted Light Characteristic | COLORLESS |
| Light Center Length | 0.630 INCHES NOMINAL IN |
| Bulb Style | T (TUBULAR) |
| Current Rating for Which Designed | 0.050 AMPERES MAXIMUM |
| Voltage Rating | 6.000 VOLTS NOMINAL |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SPECIAL FEATURES |
| 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 |
|---|---|
| SM-0640M | 5/9 Secondary reference Stanley Electric Co. Ltd |
| SM-0640M | 5/1 Secondary reference Stanley Electric Co. Ltd |
| 16775628-002 | 3/1 Design control — primary reference Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services |
| J90100.011 | 5/1 Secondary reference U.S. Government activity |
| SM-0640M | 5/1 Secondary reference Unitron International Systems Inc. |
NSN 6240-00-263-0549 is a Lamp,incandescent, classified under FSC 6240, Electric Lamps. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6240-01-062-6920. Verify interchangeability with system specifications before substitution.
Key specifications for 6240-00-263-0549: Bulb Light Transmission Characteristic: TRANSPARENT; Base Style: TELEPHONE SLIDE NUMBER ONE; Rated Average Life: NOT RATED; Overall Length: 0.870 INCHES MAXIMUM IN. 11 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.