The Coupler,rotary,radio Frequency, cataloged under National Stock Number 5985-01-394-3847, 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 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-394-3847 |
| Primary Part Number | 1538 |
| Item Name | Coupler,rotary,radio Frequency |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Reference Data and Literature | WWW.KEVLIN.COM |
| Functional Description | L BAND 7 CHANNEL W/SLIP RING & ENCODER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1538 | Frontgrade Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1708 | C/1 Advisory reference — outside the item-of-supply concept Frontgrade Technologies Inc. |
| 1708 | 3/9 Design control — primary reference Kevlin Corporation Dba Cobham Sensor Systems Div Kevlin Division |
NSN 5985-01-394-3847 is a Coupler,rotary,radio Frequency, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-394-3847 has 1 manufacturer part number on file: 1538 (Frontgrade Technologies Inc.).
Key specifications for 1538: Reference Data and Literature: WWW.KEVLIN.COM; Functional Description: L BAND 7 CHANNEL W/SLIP RING & ENCODER; End Item Identification: MODE S BEACON INTERROGATOR, ARSR2. 2 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 5985-01-394-3847 has DEMIL Code B. 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.