The Coupler,directional, cataloged under National Stock Number 5985-01-685-2831, 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 Rf-Lambda Usa, Llc Dba Rf-Lambda Usa Inc. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-685-2831 |
| Primary Part Number | RFDC1M8M20 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Rf-Lambda Usa, Llc Dba Rf-Lambda Usa Inc |
| Status | ACTIVE |
| Unpackaged Unit Weight | 33.51 OUNCES MAXIMUM OZ |
| Power Loss in Decibels | 0.35 |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 100.0 MEGAHERTZ MINIMUM AND 800.0 MEGAHERTZ MAXIMUM |
| Features Provided | ROHS DIRECTIVE COMPLIANCE |
| Unit Type | COAXIAL LINE |
| Usage Design | HIGH POWER HANDLING UP TO 500W;ULTRA WIDE BAND OPERATION;HIGH DIRECTIVITY WITHIN OPERATIONAL BAND;LOW INSERTION LOSS;HIGH PEAK TO AVERAGE HANDLING CAPABILITY W |
| 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 |
|---|---|
| RFDC1M8M20 PRIMARY | Rf-Lambda Usa, Llc Dba Rf-Lambda Usa Inc (USA) |
| 80083230 | Naval Air Warfare Center Weapons Div (USA) |
NSN 5985-01-685-2831 is a Coupler,directional, manufactured by Rf-Lambda Usa, Llc Dba Rf-Lambda Usa Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-685-2831 has 2 manufacturer part numbers on file: RFDC1M8M20 (Rf-Lambda Usa, Llc Dba Rf-Lambda Usa Inc), 80083230 (Naval Air Warfare Center Weapons Div).
Key specifications for RFDC1M8M20: Overall Height: 1.54 INCHES NOMINAL IN; Unpackaged Unit Weight: 33.51 OUNCES MAXIMUM OZ; Power Loss in Decibels: 0.35; Design Type: BIDIRECTIONAL. 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.