The Coupler,directional, cataloged under National Stock Number 5985-01-098-8322, 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 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-098-8322 |
| Primary Part Number | E503-1 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Design Type | UNIDIRECTIONAL |
| Radio Frequency Rating | 2.0 GIGAHERTZ MINIMUM AND 4.0 GIGAHERTZ MAXIMUM |
| Unit Type | COAXIAL LINE |
| 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 |
|---|---|
| 989C381H05 | Northrop Grumman Systems Corporation Dba Electronic Systems (USA) |
| E503-1 PRIMARY | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2035-4020-00 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-098-8322 is a Coupler,directional, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-098-8322 has 2 manufacturer part numbers on file: 989C381H05 (Northrop Grumman Systems Corporation Dba Electronic Systems), E503-1 (Microwave Engineering Corporation).
Key specifications for E503-1: Design Type: UNIDIRECTIONAL; Radio Frequency Rating: 2.0 GIGAHERTZ MINIMUM AND 4.0 GIGAHERTZ MAXIMUM; Unit Type: COAXIAL LINE. 3 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 5985-01-098-8322 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.