The Coupler,directional, cataloged under National Stock Number 5985-01-155-1557, 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 General Dynamics Mission Systems, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-155-1557 |
| Primary Part Number | 20-512215-1 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | General Dynamics Mission Systems, Inc. |
| Status | ACTIVE |
| Power Loss in Decibels | 0.3 |
| Design Type | UNIDIRECTIONAL |
| Radio Frequency Rating | 30.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM |
| Unit Type | COAXIAL LINE |
| 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 |
|---|---|
| CR-20-215/27107 | Merrimac Industries, Inc (USA) |
| CR-20-215 | Power Device Uk Limited Div Rf & Microwave Systems (GBR) |
| 20-512215-1 PRIMARY | General Dynamics Mission Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| CR-20-215 | 5/9 Secondary reference Merrimac Industries, Inc |
NSN 5985-01-155-1557 is a Coupler,directional, manufactured by General Dynamics Mission Systems, Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-155-1557 has 3 manufacturer part numbers on file: CR-20-215/27107 (Merrimac Industries, Inc), CR-20-215 (Power Device Uk Limited Div Rf & Microwave Systems), 20-512215-1 (General Dynamics Mission Systems, Inc.).
Key specifications for 20-512215-1: Overall Height: 1.240 INCHES MAXIMUM IN; Power Loss in Decibels: 0.3; Design Type: UNIDIRECTIONAL; Radio Frequency Rating: 30.0 MEGAHERTZ MINIMUM AND 400.0 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.
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.