The Coupler,directional, cataloged under National Stock Number 5985-01-147-6046, 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 Department of the Army Hq United States Army Communications Research and Development Command. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-147-6046 |
| Primary Part Number | B4014877-1 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Department of the Army Hq United States Army Communications Research and Development Command |
| Status | ACTIVE |
| Usage Design | MAIN LINE AND SECONDARY LINE TERMINAL FITTING |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 7.9 GIGAHERTZ MINIMUM AND 8.4 GIGAHERTZ MAXIMUM |
| Unit Type | WAVEGUIDE |
| 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 |
|---|---|
| B4014877-1 PRIMARY | Department of the Army Hq United States Army Communications Research and Development Command (USA) |
| AMC0671 | Frontgrade Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| B4014877-1 | 5/9 Secondary reference Atlantic Microwave Corporation Div Cobham Electronic Systems |
NSN 5985-01-147-6046 is a Coupler,directional, manufactured by Department of the Army Hq United States Army Communications Research and Development Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-147-6046 has 2 manufacturer part numbers on file: B4014877-1 (Department of the Army Hq United States Army Communications Research and Development Command), AMC0671 (Frontgrade Technologies Inc.).
Key specifications for B4014877-1: Usage Design: MAIN LINE AND SECONDARY LINE TERMINAL FITTING; Design Type: BIDIRECTIONAL; Radio Frequency Rating: 7.9 GIGAHERTZ MINIMUM AND 8.4 GIGAHERTZ MAXIMUM; Overall Length: 5.970 INCHES MINIMUM AND 6.030 INCHES MAXIMUM IN. 4 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.