The Lamp,incandescent, cataloged under National Stock Number 6240-01-135-3873, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-01-135-3873 |
| Primary Part Number | 243 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSPARENT |
| Filament Designation | C-2F |
| Base Style | MIDGET FLANGED |
| Rated Average Life | HOURS |
| Bulb Designator | T-1 |
| Filament Heavy Duty Service Rating | NOT RATED |
| Emitted Light Characteristic | WHITE |
| Light Output Rating | 0.100 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING |
| Light Center Length | 0.167 INCHES NOMINAL IN |
| Bulb Style | T (TUBULAR) |
| Current Rating for Which Designed | 0.030 AMPERES NOMINAL |
| Voltage Rating | 12.000 VOLTS NOMINAL |
| Average Life Rating in Hours | 25000.0 |
| 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 |
|---|---|
| 243 PRIMARY | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA) |
| 262-2204-170 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| ML-9243 | Micro Lamps Inc. (USA) |
| E2 PRIMARY | Industrial Electronic Engineers, Inc. (USA) |
| OL-3024 PRIMARY | Wamco, Inc. Dba Wamco Inc (USA) |
| Reference | Meaning |
|---|---|
| 6240PL1262978 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 0125999-1 | 5/9 Secondary reference Naval Electronic Systems Security Engineering Center |
NSN 6240-01-135-3873 is a Lamp,incandescent, manufactured by Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-135-3873 has 5 manufacturer part numbers on file: 243 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch), 262-2204-170 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), ML-9243 (Micro Lamps Inc.), E2 (Industrial Electronic Engineers, Inc.), OL-3024 (Wamco, Inc. Dba Wamco Inc).
Key specifications for 243: Bulb Light Transmission Characteristic: TRANSPARENT; Filament Designation: C-2F; Base Style: MIDGET FLANGED; Rated Average Life: HOURS. 13 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.