The Coupler,directional, cataloged under National Stock Number 5985-01-203-4359, 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 Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-203-4359 |
| Primary Part Number | 167546 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc |
| Status | ACTIVE |
| Terminal Fitting Controlling Agency | DEPARTMENT OF DEFENSE |
| Usage Design | MAIN LINE AND SECONDARY LINE TERMINAL FITTING |
| Power Loss in Decibels | 25.0 |
| Identifying Number | TERMINAL FITTING PART NO. M3922/62-001; PART NO. M3922/57-001 |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 5.4 GIGAHERTZ MINIMUM AND 5.9 GIGAHERTZ MAXIMUM |
| Unit Type | COAXIAL LINE AND WAVEGUIDE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 167546 PRIMARY | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA) |
| 15870-2145-A-000 PRIMARY | Axillon Aerospace (baltimore) Inc. (USA) |
| MA59072 | Semic Rf Electronic Gmbh (DEU) |
| MA59072 | Te Connectivity Corporation (USA) |
| MA59072 PRIMARY | Island Research and Development Corporation Dba Island Research and Development Corp (USA) |
| Reference | Meaning |
|---|---|
| MA59072 | 5/9 Secondary reference M/a-Com Inc |
| 167546 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| 167546 | 5/9 Secondary reference Lexan Industries, Inc Dba Struthers Electronics Div Struthers Electronics |
| MA59072 | 5/9 Secondary reference U.S. Government activity |
| 15870-2145-A-000 | 5/9 Secondary reference Atlantic Microwave Corporation Div Cobham Electronic Systems |
| B173C-1148 | 5/9 Secondary reference Lexan Industries, Inc Dba Struthers Electronics Div Struthers Electronics |
NSN 5985-01-203-4359 is a Coupler,directional, manufactured by Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-203-4359 has 5 manufacturer part numbers on file: 167546 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc), 15870-2145-A-000 (Axillon Aerospace (baltimore) Inc.), MA59072 (Semic Rf Electronic Gmbh), MA59072 (Te Connectivity Corporation), MA59072 (Island Research and Development Corporation Dba Island Research and Development Corp).
Key specifications for 167546: Overall Height: 4.312 INCHES NOMINAL IN; Terminal Fitting Controlling Agency: DEPARTMENT OF DEFENSE; Usage Design: MAIN LINE AND SECONDARY LINE TERMINAL FITTING; Power Loss in Decibels: 25.0. 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.
NSN 5985-01-203-4359 has DEMIL Code D. 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.