The Alarm,smoke,automatic, cataloged under National Stock Number 6350-01-146-4543, is classified within Federal Supply Class 6350 (Miscellaneous Alarm, Signal, and Security Detection Systems) of the Alarm, Signal, and Security Detection Systems group. The manufacturer of record is Pyrotronics Electric Alarm Co Div of Baker Industries Inc Sub of Borg-Warner Corp. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6350-01-146-4543 |
| Primary Part Number | DU3 |
| Item Name | Alarm,smoke,automatic |
| FSC / FSG | 6350 / 63 — Miscellaneous Alarm, Signal, and Security Detection Systems |
| Manufacturer | Pyrotronics Electric Alarm Co Div of Baker Industries Inc Sub of Borg-Warner Corp |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 120.0 AC |
| 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 |
|---|---|
| DU3 PRIMARY | Pyrotronics Electric Alarm Co Div of Baker Industries Inc Sub of Borg-Warner Corp (USA) |
| Reference | Meaning |
|---|---|
| DU3 | 5/9 Secondary reference Pyrotronics Div of Baker Industries Inc Sub of Borg-Warner Corp |
| DU3C | 5/9 Secondary reference Pyrotronics Div of Baker Industries Inc Sub of Borg-Warner Corp |
NSN 6350-01-146-4543 is a Alarm,smoke,automatic, manufactured by Pyrotronics Electric Alarm Co Div of Baker Industries Inc Sub of Borg-Warner Corp, classified under FSC 6350, Miscellaneous Alarm, Signal, and Security Detection Systems. Status: active.
NSN 6350-01-146-4543 has 1 manufacturer part number on file: DU3 (Pyrotronics Electric Alarm Co Div of Baker Industries Inc Sub of Borg-Warner Corp).
1 possible match (shared part number, not a government interchangeability claim): 6350-01-566-5263. Verify interchangeability with system specifications before substitution.
Key specifications for DU3: Voltage in Volts and Current Type: 120.0 AC; Special Features: VENTED RIM: 3 AMP MAXIMUM; CEILING APPLICATION ONLY; 15 WIRE LEADS. 1 specification is 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.