The Coupler,directional, cataloged under National Stock Number 5985-01-474-0027, 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 Technical Research and Manufacturing, Inc.. Government technical data includes 4 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-474-0027 |
| Primary Part Number | DCS1020 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Technical Research and Manufacturing, Inc. |
| Status | ACTIVE |
| Power Loss in Decibels | 1.0 |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 1.0 GIGAHERTZ MINIMUM AND 12.4 GIGAHERTZ MAXIMUM |
| Unit Type | COAXIAL LINE |
| 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 |
|---|---|
| DCS1020 PRIMARY | Technical Research and Manufacturing, Inc. (USA) |
NSN 5985-01-474-0027 is a Coupler,directional, manufactured by Technical Research and Manufacturing, Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-474-0027 has 1 manufacturer part number on file: DCS1020 (Technical Research and Manufacturing, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-647-3643. Verify interchangeability with system specifications before substitution.
Key specifications for DCS1020: Overall Height: 0.750 INCHES NOMINAL IN; Power Loss in Decibels: 1.0; Design Type: BIDIRECTIONAL; Radio Frequency Rating: 1.0 GIGAHERTZ MINIMUM AND 12.4 GIGAHERTZ MAXIMUM. 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.