The Coupler,directional, cataloged under National Stock Number 5985-01-100-8666, 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 Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc. Government technical data includes 6 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 | 5985-01-100-8666 |
| Primary Part Number | 6164-20B |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc |
| Status | ACTIVE |
| Terminal Fitting Controlling Agency | ARRA INC |
| Usage Design | MAIN LINE TERMINAL FITTING |
| Power Loss in Decibels | 20.0 |
| Design Type | UNIDIRECTIONAL |
| Radio Frequency Rating | 7.0 GIGAHERTZ MINIMUM AND 12.4 GIGAHERTZ MAXIMUM |
| Unit Type | TRANSMISSION LINE |
| 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 |
|---|---|
| MDC6227-20 | Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc (USA) |
| 6164-20B PRIMARY | Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc (USA) |
NSN 5985-01-100-8666 is a Coupler,directional, manufactured by Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-100-8666 has 2 manufacturer part numbers on file: MDC6227-20 (Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc), 6164-20B (Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc).
Key specifications for 6164-20B: Overall Height: 0.560 INCHES NOMINAL IN; Terminal Fitting Controlling Agency: ARRA INC; Usage Design: MAIN LINE TERMINAL FITTING; Power Loss in Decibels: 20.0. 6 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 5985-01-100-8666 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.