The Alarm,audio-Visual, cataloged under National Stock Number 6665-01-462-5973, is classified within Federal Supply Class 6665 (Hazard-detecting Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Msa Safety Sales, Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6665-01-462-5973 |
| Primary Part Number | 8510/R |
| Item Name | Alarm,audio-Visual |
| FSC / FSG | 6665 / 66 — Hazard-detecting Instruments and Apparatus |
| Manufacturer | Msa Safety Sales, Llc |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 24.0 DC |
| General Characteristics Item Description | AUDIO-VISUAL WARNING SYSTEM; BEACON AND SOUNDER |
| Current Rating | 68.000 MILLIAMPERES |
| 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 |
|---|---|
| 8510/R PRIMARY | Msa Safety Sales, Llc (USA) |
| Reference | Meaning |
|---|---|
| 8510(09WX1) | 5/9 Secondary reference Parasense, Inc |
| 8510/R | 5/9 Secondary reference Parasense, Inc |
NSN 6665-01-462-5973 is a Alarm,audio-Visual, manufactured by Msa Safety Sales, Llc, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.
NSN 6665-01-462-5973 has 1 manufacturer part number on file: 8510/R (Msa Safety Sales, Llc).
Key specifications for 8510/R: Voltage in Volts and Current Type: 24.0 DC; General Characteristics Item Description: AUDIO-VISUAL WARNING SYSTEM; BEACON AND SOUNDER; Special Features: VOLUME CONTROL: 0-20DB ADJUSTMENT; FLASH ENERGY-0.7 JOULES; FLASH FREQUENCY-60 PER MINUTE; OPERATING TEMPERATURE: -10 DEGREES CENTIGRADE TO 55 DEGREES CENTIGRADE DB; Current Rating: 68.000 MILLIAMPERES. 3 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.