The Lamp,incandescent, cataloged under National Stock Number 6240-00-243-5534, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Satair A/s. Government technical data includes 15 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-00-243-5534 |
| Primary Part Number | 1666 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Satair A/s |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSLUCENTTRANSLUCENT |
| Filament Designation | CC-6CC-6 |
| Base Style | DOUBLE CONTACT BAYONET CANDELABRADOUBLE CONTACT BAYONET CANDELABRA |
| Rated Average Life | HOURSHOURS |
| Bulb Designator | S-8S-8 |
| Features Provided | FILAMENT SHIELDING AND FILAMENT SHIELDING AND HEAT RESISTANT GLASSHEAT RESISTANT GLASS |
| Filament Heavy Duty Service Rating | NOT RATEDNOT RATED |
| Wattage Rating | 17.640 WATTS17.640 WATTS |
| Emitted Light Characteristic | WHITEWHITE |
| Light Output Rating | 21.000 BEAM CANDLEPOWER NOMINAL SINGLE RATING21.000 BEAM CANDLEPOWER NOMINAL SINGLE RATING |
| Light Center Length | 1.250 INCHES NOMINAL1.250 INCHES NOMINAL IN |
| Bulb Style | S (STRAIGHT SIDE)S (STRAIGHT SIDE) |
| Current Rating for Which Designed | 0.630 AMPERES NOMINAL0.630 AMPERES NOMINAL |
| Voltage Rating | 28.000 VOLTS NOMINAL28.000 VOLTS NOMINAL |
| Average Life Rating in Hours | 300.0300.0 |
| 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 |
|---|---|
| 1666 | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| MS15584-18 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| WL111 | 5/9 Secondary reference U.S. Government activity |
| 1666 | 5/9 Secondary reference General Electric Co Miniature Lamp Products Dept Lighting Business Group |
| 1666 | 3/1 Design control — primary reference Lamp Industry for Use with Industry Designations and Abbreviations for Lamps |
| MS15584-5 | 5/9 Secondary reference U.S. Government activity |
NSN 6240-00-243-5534 is a Lamp,incandescent, manufactured by Satair A/s, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-00-243-5534 has 1 manufacturer part number on file: 1666 (Satair A/s).
7 possible matches (shared part number, not a government interchangeability claim): 6625-00-376-5200, 2940-00-445-0100, 2805-00-477-8216. Verify interchangeability with system specifications before substitution.
Key specifications for 1666: Bulb Light Transmission Characteristic: TRANSLUCENTTRANSLUCENT; Filament Designation: CC-6CC-6; Base Style: DOUBLE CONTACT BAYONET CANDELABRADOUBLE CONTACT BAYONET CANDELABRA; Rated Average Life: HOURSHOURS. 15 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.