The Coupler,directional, cataloged under National Stock Number 5985-01-230-9180, 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 Bird Electronic Corporation Div Bird Electronic Corp. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-01-230-9180 |
| Primary Part Number | 4151-190 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Bird Electronic Corporation Div Bird Electronic Corp |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIP. |
| Power Loss in Decibels | 30.0 |
| Design Type | BIDIRECTIONAL |
| Supplementary Features | BRASS QQ-B-613; AL 6061; GRAY ENAMEL MIL-E-15090 FORMULA 11; CONDUCTIVE CHEM COATING MIL-C-5541; 500.0 W; TWO DIODE DETECTING ELEM; INSERTION LOSS 0.1 DB MAX; SHIELDED CPLR; TWO TYPE N FEMALE CONNECTORS; 1.1 MAX VSWR; FOUR SOLDERED TERM.; OPER M 40.0 TO P 85.0 DEG; OPER ALT 10000.0 FT MAX W |
| Radio Frequency Rating | 20.0 MEGAHERTZ MINIMUM AND 88.0 MEGAHERTZ MAXIMUM |
| Unit Type | TRANSMISSION LINE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4151-190 | Bird Electronic Corporation Div Bird Electronic Corp (USA) |
| Reference | Meaning |
|---|---|
| C5115267 | 5/9 Secondary reference Us Army Electronic Warfare Laboratory See CAGE Code 80063 |
| C5115267 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-230-9180 is a Coupler,directional, manufactured by Bird Electronic Corporation Div Bird Electronic Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-230-9180 has 1 manufacturer part number on file: 4151-190 (Bird Electronic Corporation Div Bird Electronic Corp).
Key specifications for 4151-190: Overall Height: 1.040 INCHES MINIMUM AND 1.080 INCHES MAXIMUM IN; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIP.; Power Loss in Decibels: 30.0; Design Type: BIDIRECTIONAL. 6 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 5985-01-230-9180 has DEMIL Code B. 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.