The Modulator,double Balance, cataloged under National Stock Number 6660-01-072-6849, is classified within Federal Supply Class 6660 (Meteorological Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Frequency Electronics Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6660-01-072-6849 |
| Primary Part Number | MX4003F |
| Item Name | Modulator,double Balance |
| FSC / FSG | 6660 / 66 — Meteorological Instruments and Apparatus |
| Manufacturer | Frequency Electronics Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 2-4 GHZ; 2.5 1 VSWR; IF BANDWIDTH AT 3 DB 0-1000 MHZ; 0 TO 50 DEG C OPERATING TEMP; 1.50 IN. BY 1.00 IN. BY 1.03 IN. GHz |
| 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 |
|---|---|
| MX4003F PRIMARY | Frequency Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| MX4003F | 5/9 Secondary reference Fei Microwave Inc |
| 119312-001 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 6660-01-072-6849 is a Modulator,double Balance, manufactured by Frequency Electronics Inc, classified under FSC 6660, Meteorological Instruments and Apparatus. Status: active.
NSN 6660-01-072-6849 has 1 manufacturer part number on file: MX4003F (Frequency Electronics Inc).
Key specifications for MX4003F: General Characteristics Item Description: 2-4 GHZ; 2.5 1 VSWR; IF BANDWIDTH AT 3 DB 0-1000 MHZ; 0 TO 50 DEG C OPERATING TEMP; 1.50 IN. BY 1.00 IN. BY 1.03 IN. GHz. 1 specification is 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.