The Horn,signal, cataloged under National Stock Number 6350-01-681-0397, 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 Dynalec Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6350-01-681-0397 |
| Primary Part Number | 63103-420 |
| Item Name | Horn,signal |
| FSC / FSG | 6350 / 63 — Miscellaneous Alarm, Signal, and Security Detection Systems |
| Manufacturer | Dynalec Corporation |
| Status | ACTIVE |
| Mounting Hole/stud Quantity | 3 |
| Quantity | 1 |
| Specification/standard Data | 81349-MIL-S-901D GOVERNMENT SPECIFICATION |
| Mounting Bracket | PROVIDED |
| Surface Treatment | CHROMIUM AND PAINT |
| Operating Temp Range | +32.0 TO 120.0 FAHRENHEIT DEGF |
| Enclosure Feature | SHOCK PROOF |
| Material | ALUMINUM ALLOY HOUSING |
| Mounting Type | BRACKET |
| Operation Method | ELECTRICAL |
| Hole Diameter | 0.28 INCHES NOMINAL IN |
| Sound Signal Direction Quantity | 1 |
| 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 |
|---|---|
| 63103-420 PRIMARY | Dynalec Corporation (USA) |
| Reference | Meaning |
|---|---|
| 63103-420 REV F | D/9 Drawing number reference only Dynalec Corporation |
NSN 6350-01-681-0397 is a Horn,signal, manufactured by Dynalec Corporation, classified under FSC 6350, Miscellaneous Alarm, Signal, and Security Detection Systems. Status: active.
NSN 6350-01-681-0397 has 1 manufacturer part number on file: 63103-420 (Dynalec Corporation).
Key specifications for 63103-420: Overall Height: 2.45 INCHES NOMINAL IN; Mounting Hole/stud Quantity: 3; Quantity: 1; Overall Length: 9.55 INCHES NOMINAL IN. 12 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.