The Coupler,directional, cataloged under National Stock Number 5985-01-353-9644, 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 Engineering Corporation. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-353-9644 |
| Primary Part Number | 1A20305 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Power Loss in Decibels | 40.0 |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 400.0 MEGAHERTZ MINIMUM AND 450.0 MEGAHERTZ MAXIMUM |
| Unit Type | COAXIAL LINE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1A20305 | Microwave Engineering Corporation (USA) |
| 1607-A-00 | Axillon Aerospace (baltimore) Inc. (USA) |
| 1A20305H01 | Myat, Inc. Dba Myat Inc (USA) |
| Reference | Meaning |
|---|---|
| 33633 | 5/9 Secondary reference Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies |
| 1607-A-00 | 5/9 Secondary reference Atlantic Microwave Corporation Div Cobham Electronic Systems |
| 1A20305H01 | 5/9 Secondary reference Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies |
| 1A20305H01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-353-9644 is a Coupler,directional, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-353-9644 has 3 manufacturer part numbers on file: 1A20305 (Microwave Engineering Corporation), 1607-A-00 (Axillon Aerospace (baltimore) Inc.), 1A20305H01 (Myat, Inc. Dba Myat Inc).
Key specifications for 1A20305: Power Loss in Decibels: 40.0; Design Type: BIDIRECTIONAL; Radio Frequency Rating: 400.0 MEGAHERTZ MINIMUM AND 450.0 MEGAHERTZ MAXIMUM; Overall Length: 10.968 INCHES MINIMUM AND 11.032 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.
NSN 5985-01-353-9644 has DEMIL Code Q. 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.