The Flasher,thermal, cataloged under National Stock Number 5945-01-188-7224, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Relay Specialties Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-188-7224 |
| Primary Part Number | FS524 |
| Item Name | Flasher,thermal |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Relay Specialties Inc |
| Status | ACTIVE |
| Flashing Rate | 10 PER MINUTE MINIMUM AND 100 PER MINUTE MAXIMUM |
| Terminal Quantity | 1 |
| AC Voltage Rating | 24.0 VOLTS NOMINAL |
| Terminal Type | STANDARD TUBE BASE |
| DC Voltage Rating | 24.0 VOLTS NOMINAL |
| Lamp Quantity for Which Designed | 4 |
| Controlled Circuit Quantity | 2 |
| Adjustability | ADJUSTABLE |
| Environmental Protection | DUSTPROOF |
| Mounting Configuration | PLUG IN TUBE BASE |
| Cubic Measure | 15.437 CUBIC INCHES |
| Operating Mechanism Inclosure | NOT INCLUDED |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM |
| Battery Operation Facility | NOT PROVIDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5945-01-188-7224 is a Flasher,thermal, manufactured by Relay Specialties Inc, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-188-7224 has 2 manufacturer part numbers on file: 957049C1 (Solar Turbines Incorporated Dba Solar Turbines Incorporated), FS524 (Relay Specialties Inc).
2 possible matches (shared part number, not a government interchangeability claim): 7025-01-503-3949, 5895-01-522-5588. Verify interchangeability with system specifications before substitution.
Key specifications for FS524: Overall Height: 3.625 INCHES NOMINAL IN; Flashing Rate: 10 PER MINUTE MINIMUM AND 100 PER MINUTE MAXIMUM; Terminal Quantity: 1; AC Voltage Rating: 24.0 VOLTS NOMINAL. 14 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.