The Horn,signal, cataloged under National Stock Number 6350-01-565-9640, 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 Birdon Pty Ltd. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6350-01-565-9640 |
| Primary Part Number | SC628NR |
| Item Name | Horn,signal |
| FSC / FSG | 6350 / 63 — Miscellaneous Alarm, Signal, and Security Detection Systems |
| Manufacturer | Birdon Pty Ltd |
| Status | ACTIVE |
| Loudness Level in Decibels | 95DB AT 2FT FT |
| Mounting Hole/stud Quantity | 1 |
| Frequency in Hertz | 2900.0 |
| Current Type | DC |
| Overall Diameter | 1.687 INCHES NOMINAL IN |
| Voltage in Volts | 28.0 |
| Sound Projector Type | BUZZER |
| Operating Temp Range | -30.0 TO 65.0 CELSIUS DEGC |
| Mounting Type | UNTHREADED HOLE |
| Operation Method | ELECTRICAL |
| Hole Diameter | 1.250 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 |
|---|---|
| SC628NR | Birdon Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| SC628NR | 3/2 Design control — primary reference U.S. Government activity |
| M2788-363010 | 6/9 Informative reference only Forsvarets Materielverk |
NSN 6350-01-565-9640 is a Horn,signal, manufactured by Birdon Pty Ltd, classified under FSC 6350, Miscellaneous Alarm, Signal, and Security Detection Systems. Status: active.
NSN 6350-01-565-9640 has 1 manufacturer part number on file: SC628NR (Birdon Pty Ltd).
Key specifications for SC628NR: Overall Height: 1.280 INCHES NOMINAL IN; Loudness Level in Decibels: 95DB AT 2FT FT; Mounting Hole/stud Quantity: 1; Frequency in Hertz: 2900.0. 11 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.