The Radar System,early Warning, cataloged under National Stock Number 5840-01-702-5134, is classified within Federal Supply Class 5840 (Radar Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Lowrance. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5840-01-702-5134 |
| Primary Part Number | HALO 20 |
| Item Name | Radar System,early Warning |
| FSC / FSG | 5840 / 58 — Radar Equipment, Except Airborne |
| Manufacturer | Lowrance |
| Status | ACTIVE |
| Transmitted Signal Frequency Rating | 9.4 GIGAHERTZ NOMINAL |
| Installation Design | SEABORNE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| HALO 20 PRIMARY | Lowrance (USA) |
NSN 5840-01-702-5134 is a Radar System,early Warning, manufactured by Lowrance, classified under FSC 5840, Radar Equipment, Except Airborne. Status: active.
NSN 5840-01-702-5134 has 1 manufacturer part number on file: HALO 20 (Lowrance).
1 possible match (shared part number, not a government interchangeability claim): 5840-01-732-1292. Verify interchangeability with system specifications before substitution.
Key specifications for HALO 20: Overall Height: 223.0 MILLIMETERS NOMINAL MM; Overall Width: 510.0 MILLIMETERS NOMINAL MM; Transmitted Signal Frequency Rating: 9.4 GIGAHERTZ NOMINAL; Special Features: OPERATING TEMPERATURE RANGE IS: NEGATIVE 25 DEGREES CELCIUS TO 55 DEGREES CELCIUS.. 2 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.