The Alarm,smoke,automatic, cataloged under National Stock Number 6350-01-226-6575, 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 Fire Control Instruments Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6350-01-226-6575 |
| Primary Part Number | PSD-7121 |
| Item Name | Alarm,smoke,automatic |
| FSC / FSG | 6350 / 63 — Miscellaneous Alarm, Signal, and Security Detection Systems |
| Manufacturer | Fire Control Instruments Inc |
| Status | ACTIVE |
| Overall Diameter | 6.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| PSD-7121 PRIMARY | Fire Control Instruments Inc (USA) |
| Reference | Meaning |
|---|---|
| B4031031-001 | C/1 Advisory reference — outside the item-of-supply concept Department of the Army Hq United States Army Communications Research and Development Command |
NSN 6350-01-226-6575 is a Alarm,smoke,automatic, manufactured by Fire Control Instruments Inc, classified under FSC 6350, Miscellaneous Alarm, Signal, and Security Detection Systems. Status: active.
NSN 6350-01-226-6575 has 1 manufacturer part number on file: PSD-7121 (Fire Control Instruments Inc).
Key specifications for PSD-7121: Overall Diameter: 6.250 INCHES NOMINAL IN; Special Features: PHOTOELECTRIC; NON POLARIZED; OFF-WHITE TEXTURED,HIGH IMPACT PLASTIC; Overall Depth: 3.380 INCHES NOMINAL IN. 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.