The Buzzer, cataloged under National Stock Number 6350-01-503-4278, 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 Naval Sea Systems Command. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6350-01-503-4278 |
| Primary Part Number | 556-7410399 FIND AY-1-49 |
| Item Name | Buzzer |
| FSC / FSG | 6350 / 63 — Miscellaneous Alarm, Signal, and Security Detection Systems |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Loudness Level in Decibels | 90 DB DB |
| Usage Design | AUDIBLE ALARM |
| 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 |
|---|---|
| 556-7410399 FIND AY-1-49 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| KMB-P80A1 | 5/9 Secondary reference Zf Industrieantriebe Witten Gmbh |
| B791-2001 FIND AY-1-49 | 5/9 Secondary reference U.S. Government activity |
| KMB-P80A1 | 5/9 Secondary reference Mx4 Electronics, Inc. |
NSN 6350-01-503-4278 is a Buzzer, manufactured by Naval Sea Systems Command, classified under FSC 6350, Miscellaneous Alarm, Signal, and Security Detection Systems. Status: active.
NSN 6350-01-503-4278 has 1 manufacturer part number on file: 556-7410399 FIND AY-1-49 (Naval Sea Systems Command).
Key specifications for 556-7410399 FIND AY-1-49: Loudness Level in Decibels: 90 DB DB; Part Name Assigned by Controlling Agency: BUZZER, ALARM, STEADY; End Item Identification: ACCUNULATOR H; SEAWOLF CLASS SSN; Usage Design: AUDIBLE ALARM. 2 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.