The Modulator,radar, cataloged under National Stock Number 5841-00-173-2740, is classified within Federal Supply Class 5841 (Radar Equipment, Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Caes Mission Systems Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5841-00-173-2740 |
| Primary Part Number | 311020-1 |
| Item Name | Modulator,radar |
| FSC / FSG | 5841 / 58 — Radar Equipment, Airborne |
| Manufacturer | Caes Mission Systems Llc |
| Status | ACTIVE |
| Circuit Construction Type | SOLID STATE |
| FSC Application Data | RADAR EQUIPMENT,AIRBORNE |
| Inclosure Type | PARTIALLY INCLOSED |
| Fragility Factor | MODERATELY RUGGED |
| Control Type | REMOTE |
| Operating Control Method | AUTOMATIC |
| Basic Shape Style | RECTANGULAR OR SQUARE |
| Reliability Indicator | NOT ESTABLISHED |
| Average Life Measurement | NOT RATED |
| Installation Design | MECHANICAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 311020-1 | Caes Mission Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 311020G | 3/9 Design control — primary reference Vega Precision Laboratories Inc Sub of Herley Industries Inc |
NSN 5841-00-173-2740 is a Modulator,radar, manufactured by Caes Mission Systems Llc, classified under FSC 5841, Radar Equipment, Airborne. Status: active.
NSN 5841-00-173-2740 has 1 manufacturer part number on file: 311020-1 (Caes Mission Systems Llc).
1 possible match (shared part number, not a government interchangeability claim): 1560-01-679-3697. Verify interchangeability with system specifications before substitution.
Key specifications for 311020-1: Circuit Construction Type: SOLID STATE; FSC Application Data: RADAR EQUIPMENT,AIRBORNE; Inclosure Type: PARTIALLY INCLOSED; Fragility Factor: MODERATELY RUGGED. 10 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.
NSN 5841-00-173-2740 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.