The Coupler,directional, cataloged under National Stock Number 5985-01-273-9838, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 6 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-273-9838 |
| Primary Part Number | 2901045-3 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIP. |
| Power Loss in Decibels | 15.0 |
| Design Type | UNIDIRECTIONAL |
| Criticality Code Justification | APQB |
| Radio Frequency Rating | 520.0 MEGAHERTZ MINIMUM AND 560.0 MEGAHERTZ 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 2901045-3 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| CRM-15-540/12488 | Merrimac Industries, Inc (USA) |
NSN 5985-01-273-9838 is a Coupler,directional, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-273-9838 has 2 manufacturer part numbers on file: 2901045-3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), CRM-15-540/12488 (Merrimac Industries, Inc).
Key specifications for 2901045-3: Overall Height: 0.540 INCHES MINIMUM IN; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIP.; Power Loss in Decibels: 15.0; Design Type: UNIDIRECTIONAL. 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 5985-01-273-9838 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.