The Coupler,directional, cataloged under National Stock Number 5985-01-421-0997, 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 The Boeing Company Div Legacy Corinth Bgrc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-421-0997 |
| Primary Part Number | 4000-40209-09 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | The Boeing Company Div Legacy Corinth Bgrc |
| Status | ACTIVE |
| Terminal Fitting Controlling Agency | MIL-C-39012 |
| Radio Frequency Rating | 0.5 GIGAHERTZ MINIMUM AND 8.0 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 |
|---|---|
| 4000-40209-09 | The Boeing Company Div Legacy Corinth Bgrc (USA) |
| Reference | Meaning |
|---|---|
| 30358A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-421-0997 is a Coupler,directional, manufactured by The Boeing Company Div Legacy Corinth Bgrc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-421-0997 has 1 manufacturer part number on file: 4000-40209-09 (The Boeing Company Div Legacy Corinth Bgrc).
Key specifications for 4000-40209-09: Terminal Fitting Controlling Agency: MIL-C-39012; Radio Frequency Rating: 0.5 GIGAHERTZ MINIMUM AND 8.0 GIGAHERTZ MAXIMUM; Unit Type: COAXIAL LINE; Special Features: INSERTION LOSS 1.0 DB; COUPLING 6.0 DB; 1 WATT CW MAXIMUM INPUT POWER; 50 WATTS PEAK PULSE; OPERATING TEMP.RANGE, -55 DEG.C. TO +85 DEG.C.; BROADBAND; 4.32 IN.L. X 0.99 IN.H. X 0.40 IN.W.; DIRECTIONAL IN. 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.
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.