The Antenna, cataloged under National Stock Number 5985-01-682-4072, 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 Ah Systems Inc Dba Ah Systems Inc. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-682-4072 |
| Primary Part Number | SAS-521F-4 |
| Item Name | Antenna |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Ah Systems Inc Dba Ah Systems Inc |
| Status | ACTIVE |
| Terminal Type | CONNECTOR, RECEPTACLE SINGLE ANTENNA ELEMENT |
| Design Type | BICONICAL SINGLE ANTENNA ELEMENT |
| Mounting Method | BASE |
| Characteristic Impedance in Ohms | 50.0 SINGLE ANTENNA ELEMENT |
| Electromagnetic Polarization Type | HORIZONTAL SINGLE ANTENNA ELEMENT |
| Frequency Rating | 4.0 GIGAHERTZ MAXIMUM SINGLE ANTENNA ELEMENT |
| Power Gain in Decibels | 6.0 SINGLE ANTENNA ELEMENT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SAS-521F-4 PRIMARY | Ah Systems Inc Dba Ah Systems Inc (USA) |
NSN 5985-01-682-4072 is a Antenna, manufactured by Ah Systems Inc Dba Ah Systems Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-682-4072 has 1 manufacturer part number on file: SAS-521F-4 (Ah Systems Inc Dba Ah Systems Inc).
Key specifications for SAS-521F-4: Overall Height: 22.2 INCHES NOMINAL IN; Terminal Type: CONNECTOR, RECEPTACLE SINGLE ANTENNA ELEMENT; Design Type: BICONICAL SINGLE ANTENNA ELEMENT; Mounting Method: BASE. 7 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.
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.