The Antenna, cataloged under National Stock Number 5985-01-455-8293, 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 Frontgrade Technologies Inc.. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-455-8293 |
| Primary Part Number | AV221 |
| Item Name | Antenna |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 |
| Beam Scanning Method | FIXED SINGLE ANTENNA ELEMENT |
| Terminal Type | RECEPTACLE, COAXIAL SINGLE ANTENNA ELEMENT |
| Design Type | AIRFOIL SINGLE ANTENNA ELEMENT |
| Mounting Method | UNTHREADED HOLE(S) |
| Radiation Pattern | OMNIDIRECTIONAL SINGLE ANTENNA ELEMENT |
| Mounting Hole Diameter | 0.195 INCHES NOMINAL IN |
| Connector End Design | PIN SINGLE ANTENNA ELEMENT |
| Electromagnetic Polarization Type | VERTICAL SINGLE ANTENNA ELEMENT |
| Frequency Rating | 30.000 MEGAHERTZ MINIMUM AND 400.000 MEGAHERTZ MAXIMUM SINGLE ANTENNA ELEMENT |
| Coaxial Connector Series Designation | TNC 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 |
|---|---|
| AV221 PRIMARY | Frontgrade Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| AV221 | 3/9 Design control — primary reference Cobham Exeter, Inc. |
NSN 5985-01-455-8293 is a Antenna, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-455-8293 has 1 manufacturer part number on file: AV221 (Frontgrade Technologies Inc.).
Key specifications for AV221: Mounting Hole Quantity: 4; Beam Scanning Method: FIXED SINGLE ANTENNA ELEMENT; Terminal Type: RECEPTACLE, COAXIAL SINGLE ANTENNA ELEMENT; Design Type: AIRFOIL 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.
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.