The Buzzer, cataloged under National Stock Number 6350-01-672-2548, 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 Ludlum Measurements Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6350-01-672-2548 |
| Primary Part Number | 21-9035 |
| Item Name | Buzzer |
| FSC / FSG | 6350 / 63 — Miscellaneous Alarm, Signal, and Security Detection Systems |
| Manufacturer | Ludlum Measurements Inc |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 1.5 DC |
| Overall Diameter | 20.0 MILLIMETERS NOMINAL MM |
| Mounting Method | CLIP |
| Inclosure | NOT INCLUDED |
| Frequency Rating | 3.6 KILOHERTZ NOMINAL |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 21-9035 | Ludlum Measurements Inc (USA) |
| Reference | Meaning |
|---|---|
| 7BB-20-3 | 3/9 Design control — primary reference Murata Mfg Co. Ltd |
NSN 6350-01-672-2548 is a Buzzer, manufactured by Ludlum Measurements Inc, classified under FSC 6350, Miscellaneous Alarm, Signal, and Security Detection Systems. Status: active.
NSN 6350-01-672-2548 has 1 manufacturer part number on file: 21-9035 (Ludlum Measurements Inc).
Key specifications for 21-9035: Overall Height: 0.22 MILLIMETERS NOMINAL MM; Voltage in Volts and Current Type: 1.5 DC; Overall Diameter: 20.0 MILLIMETERS NOMINAL MM; Mounting Method: CLIP. 6 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.