The Antenna Assembly, cataloged under National Stock Number 5985-00-973-2677, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-973-2677 |
| Item Name | Antenna Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Component Quantity | 3 |
| Mounting Hole Quantity | 8 |
| FSC Application Data | RADIO COMMUNICATION EQUIPMENT |
| Beam Scanning Method | FIXED ALL ANTENNAS |
| Design Type | MAST ALL ANTENNAS |
| Overall Diameter | 1.167 FEET NOMINAL FT |
| Radiation Pattern | OMNIDIRECTIONAL ALL ANTENNAS |
| Characteristic Impedance in Ohms | 50.0 ALL ANTENNAS |
| Electromagnetic Polarization Type | VERTICAL ALL ANTENNAS |
| Operating Temp Range | -32.0 TO 52.0 CELSIUS DEGC |
| Frequency Rating | 225.000 MEGAHERTZ MINIMUM AND 400.000 MEGAHERTZ MAXIMUM AND 400.000 MEGAHERTZ MINIMUM AND 550.000 MEGAHERTZ MAXIMUM ALL ANTENNAS |
| Power Gain in Decibels | 5.00 ALL ANTENNAS |
| Power Rating | 1.000 KILOWATTS AVERAGE THIRD ANTENNA |
| Power Rating | 2.000 KILOWATTS AVERAGE FIRST ANTENNA |
| Power Rating | 2.000 KILOWATTS AVERAGE SECOND ANTENNA |
| Coaxial Connector Series Designation | LC FIRST ANTENNA |
| Coaxial Connector Series Designation | LC SECOND ANTENNA |
| Coaxial Connector Series Designation | N THIRD ANTENNA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AS1390U | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-00-973-2677 is a Antenna Assembly, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-00-973-2677: Component Quantity: 3; Mounting Hole Quantity: 8; FSC Application Data: RADIO COMMUNICATION EQUIPMENT; Beam Scanning Method: FIXED ALL ANTENNAS. 18 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.
NSN 5985-00-973-2677 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.