The Lamp,incandescent, cataloged under National Stock Number 6240-01-083-9646, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Itt Schadow Inc. Government technical data includes 5 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. 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 | 6240-01-083-9646 |
| Primary Part Number | 381-AS15 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Itt Schadow Inc |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSPARENT |
| Base Style | SPECIAL MINIATURE, ONE AND HALF TURN THREAD |
| Bulb Designator | T-1 3/4 |
| Emitted Light Characteristic | INFRARED |
| Bulb Style | T (TUBULAR) |
| 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 |
|---|---|
| 381-AS15 PRIMARY | Itt Schadow Inc (USA) |
NSN 6240-01-083-9646 is a Lamp,incandescent, manufactured by Itt Schadow Inc, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-083-9646 has 1 manufacturer part number on file: 381-AS15 (Itt Schadow Inc).
1 possible match (shared part number, not a government interchangeability claim): 6240-01-091-9821. Verify interchangeability with system specifications before substitution.
Key specifications for 381-AS15: Bulb Light Transmission Characteristic: TRANSPARENT; Base Style: SPECIAL MINIATURE, ONE AND HALF TURN THREAD; Bulb Designator: T-1 3/4; Overall Length: 0.625 INCHES NOMINAL IN. 5 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.