The Attenuator,fixed, cataloged under National Stock Number 5985-01-379-9908, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-379-9908 |
| Primary Part Number | 379-0569-090 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS, WAVEGUIDES, AND RELATED EQUIPMENT |
| Frequency Range | 960.000 MEGAHERTZ MINIMUM AND 1215.000 MEGAHERTZ MAXIMUM |
| Precious Material | GOLD |
| Voltage Standing Wave Ratio | 1.15 |
| Input Impedance Rating in Ohms | 50.0 |
| Rf Signal Attenuation in Decibels | 0.5 |
| Attenuation Accuracy in Decibels | -0.125 TO 0.125 |
| Surface Treatment | NICKEL BODY |
| Precious Material and Location | TERMINALS GOLD |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS DEGC |
| Voltage Standing Wave Ratio Frequency Range | +960.0 TO 1215.0 MEGAHERTZ |
| Application Design | TRANSMISSION LINE |
| Material | COPPER ALLOY AND COPPER BODY |
| Power Rating | 30.0 WATTS PEAK |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| 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 |
|---|---|
| BR18-090 | Res-Net Microwave Inc Dba Res-Net Microwave, Inc (USA) |
| 379-0569-090 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| A3RC35-9 | 5/9 Secondary reference Caes Systems Llc |
NSN 5985-01-379-9908 is a Attenuator,fixed, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-379-9908 has 2 manufacturer part numbers on file: BR18-090 (Res-Net Microwave Inc Dba Res-Net Microwave, Inc), 379-0569-090 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 379-0569-090: FSC Application Data: ANTENNAS, WAVEGUIDES, AND RELATED EQUIPMENT; Frequency Range: 960.000 MEGAHERTZ MINIMUM AND 1215.000 MEGAHERTZ MAXIMUM; Precious Material: GOLD; Voltage Standing Wave Ratio: 1.15. 16 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.