The Coupler,rotary,radio Frequency, cataloged under National Stock Number 5985-01-190-4475, 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 9 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 | 5985-01-190-4475 |
| Primary Part Number | 2890363-1 |
| Item Name | Coupler,rotary,radio Frequency |
| 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 EQUIPMENT |
| Overall Diameter | 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN |
| Precious Material | SILVER |
| Input Impedance Rating in Ohms | 50.0 |
| Radio Frequency Rating | 8.0 GIGAHERTZ MINIMUM AND 12.4 GIGAHERTZ MAXIMUM |
| Unit Type | COAXIAL LINE |
| Precious Material and Location | EXTERNAL SURFACES SILVER |
| Material | COPPER ALLOY |
| Output Impedance Rating in Ohms | 50.0 |
| 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 |
|---|---|
| 2890363-1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| A-12-2124-0 | Diamond Antenna & Microwave Corporation (USA) |
NSN 5985-01-190-4475 is a Coupler,rotary,radio Frequency, 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 5985-01-190-4475 has 2 manufacturer part numbers on file: 2890363-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), A-12-2124-0 (Diamond Antenna & Microwave Corporation).
Key specifications for 2890363-1: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Overall Diameter: 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN; Precious Material: SILVER; Input Impedance Rating in Ohms: 50.0. 9 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.