The Lamp,incandescent, cataloged under National Stock Number 6240-01-552-6444, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Clamshell Structures, Inc. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-01-552-6444 |
| Primary Part Number | 503583 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Clamshell Structures, Inc |
| Status | ACTIVE |
| Wattage Rating | 400.000 WATTS |
| Bulb Style | E (ELIPTICAL) |
| 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 |
|---|---|
| 503583 PRIMARY | Clamshell Structures, Inc (USA) |
NSN 6240-01-552-6444 is a Lamp,incandescent, manufactured by Clamshell Structures, Inc, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-552-6444 has 1 manufacturer part number on file: 503583 (Clamshell Structures, Inc).
Key specifications for 503583: Wattage Rating: 400.000 WATTS; Bulb Style: E (ELIPTICAL); Part Name Assigned by Controlling Agency: BULB; End Item Identification: VARIOUS E/I. 2 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.