The Buzzer, cataloged under National Stock Number 6350-01-574-7663, 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 Acr Electronics, Inc. Dba Acr Electronics Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6350-01-574-7663 |
| Primary Part Number | 452-6505 |
| Item Name | Buzzer |
| FSC / FSG | 6350 / 63 — Miscellaneous Alarm, Signal, and Security Detection Systems |
| Manufacturer | Acr Electronics, Inc. Dba Acr Electronics Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 452-6505 PRIMARY | Acr Electronics, Inc. Dba Acr Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| 452-6505 | 3/9 Design control — primary reference Artex Aircraft Supplies Inc. Dba Wulfsberg Electronics Div Chelton Avionics Inc. |
NSN 6350-01-574-7663 is a Buzzer, manufactured by Acr Electronics, Inc. Dba Acr Electronics Inc, classified under FSC 6350, Miscellaneous Alarm, Signal, and Security Detection Systems. Status: active.
NSN 6350-01-574-7663 has 1 manufacturer part number on file: 452-6505 (Acr Electronics, Inc. Dba Acr Electronics Inc).
Key specifications for 452-6505: Special Features: MATERIAL, ABS UL-94 1/16IN HB HIGH HEAT (BLACK);WEIGHT, 9.5 GRAMS;POSITIVE TERMINAL: RED WIRE;NEGATIVE TERMINAL: BLACK WIRE; OPERATING TEMPERATURE, -30- TO 85C;OPERATING CURRENT:MAX 6 MA @ 12VDC VDC. 0 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.