The Antenna, cataloged under National Stock Number 5985-01-290-6497, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Argon St, Inc.. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-290-6497 |
| Primary Part Number | 1356AS308 |
| Item Name | Antenna |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Argon St, Inc. |
| Status | ACTIVE |
| Mounting Hole Quantity | 9 |
| Terminal Type | RECEPTACLE, COAXIAL SINGLE ANTENNA ELEMENT |
| Design Type | CONICAL HELIX SINGLE ANTENNA ELEMENT |
| Overall Diameter | 10.125 INCHES NOMINAL IN |
| Mounting Method | BRACKET(S) |
| Mounting Hole Diameter | 0.203 MILLIMETERS NOMINAL MM |
| Connector End Design | SOCKET SINGLE ANTENNA ELEMENT |
| Electromagnetic Polarization Type | HORIZONTAL SINGLE ANTENNA ELEMENT |
| Frequency Rating | 425.000 MEGAHERTZ MINIMUM AND 445.000 MEGAHERTZ MAXIMUM SINGLE ANTENNA ELEMENT |
| Power Rating | 200.000 WATTS PEAK SINGLE ANTENNA ELEMENT |
| Coaxial Connector Series Designation | N SINGLE ANTENNA ELEMENT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | N |
NSN 5985-01-290-6497 is a Antenna, manufactured by Argon St, Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-290-6497 has 2 manufacturer part numbers on file: 1356AS308 (Argon St, Inc.), 1356AS308 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1356AS308: Mounting Hole Quantity: 9; Overall Height: 10.125 INCHES NOMINAL IN; Terminal Type: RECEPTACLE, COAXIAL SINGLE ANTENNA ELEMENT; Design Type: CONICAL HELIX SINGLE ANTENNA ELEMENT. 11 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 5985-01-290-6497 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.