The Coupler,directional, cataloged under National Stock Number 5985-01-220-0523, 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 Advance Component Technology Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-220-0523 |
| Primary Part Number | C4258-10 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Advance Component Technology Inc |
| Status | ACTIVE |
| FSC Application Data | COMMUNICATION QUIPMENT |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 5.4 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ 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 |
|---|---|
| 4258-10 | Broan-Nutone Llc Dba Broan (USA) |
| C4258-10 PRIMARY | Microwave Advance Component Technology Inc (USA) |
| Reference | Meaning |
|---|---|
| 08684-67005 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 4258-10 | 5/9 Secondary reference Microwave Advance Component Technology Inc |
| 0955-0199 | 5/9 Secondary reference Agilent Technologies Inc. Div Agilent Solution Support |
NSN 5985-01-220-0523 is a Coupler,directional, manufactured by Microwave Advance Component Technology Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-220-0523 has 2 manufacturer part numbers on file: 4258-10 (Broan-Nutone Llc Dba Broan), C4258-10 (Microwave Advance Component Technology Inc).
Key specifications for C4258-10: Overall Height: 0.375 INCHES NOMINAL IN; FSC Application Data: COMMUNICATION QUIPMENT; Design Type: BIDIRECTIONAL; Radio Frequency Rating: 5.4 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ 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.