The Coupler,directional, cataloged under National Stock Number 5985-01-270-1979, 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 Devices 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-270-1979 |
| Primary Part Number | GM318-039 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Devices Inc |
| Status | ACTIVE |
| Power Loss in Decibels | 30.0 |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 0.0 MEGAHERTZ MINIMUM AND 1030.0 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 |
|---|---|
| GM318-039 PRIMARY | Microwave Devices Inc (USA) |
| Reference | Meaning |
|---|---|
| 06010447 | 5/9 Secondary reference U.S. Government activity |
| 06010447 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5985-01-270-1979 is a Coupler,directional, manufactured by Microwave Devices Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-270-1979 has 1 manufacturer part number on file: GM318-039 (Microwave Devices Inc).
Key specifications for GM318-039: Overall Height: 1.250 INCHES NOMINAL IN; Power Loss in Decibels: 30.0; Design Type: BIDIRECTIONAL; Radio Frequency Rating: 0.0 MEGAHERTZ MINIMUM AND 1030.0 MEGAHERTZ 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.
NSN 5985-01-270-1979 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.