The Coupler,directional, cataloged under National Stock Number 5985-01-343-4945, 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 Bae Systems Maritime Services Limited. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-343-4945 |
| Primary Part Number | 43551-238-00-9 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Bae Systems Maritime Services Limited |
| Status | ACTIVE |
| Unit Type | COAXIAL LINE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 43551-238-00-9 | Bae Systems Maritime Services Limited (GBR) |
| 456/4/02405/000 | Bae Systems Maritime Services Limited (GBR) |
| Reference | Meaning |
|---|---|
| 456/4/02405/000 | 5/9 Secondary reference British Aerospace Defence Systems Ltd T/a Bae Systems |
| 43551-238-00-9 | 5/9 Secondary reference British Aerospace Defence Systems Ltd T/a Bae Systems |
| 2020-6626-20 | 5/9 Secondary reference Parker Sales Uk |
| 2020-6626-20 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5985-01-343-4945 is a Coupler,directional, manufactured by Bae Systems Maritime Services Limited, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-343-4945 has 2 manufacturer part numbers on file: 43551-238-00-9 (Bae Systems Maritime Services Limited), 456/4/02405/000 (Bae Systems Maritime Services Limited).
Key specifications for 43551-238-00-9: Unit Type: COAXIAL LINE. 1 specification is 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 5985-01-343-4945 has DEMIL Code Q. 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.