The Attenuator,variable, cataloged under National Stock Number 5985-01-646-0858, 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 Jfw Industries Incorporated Dba Jfw Industries Inc. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-646-0858 |
| Primary Part Number | 75R-056-F |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Jfw Industries Incorporated Dba Jfw Industries Inc |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.4 |
| Impedance Rating in Ohms | 75.0 INPUT-OUTPUT |
| Frequency Range | 1000.0 MEGAHERTZ MAXIMUM |
| Body Style | COAXIAL TYPE |
| Attenuation Accuracy Reference Frequency | 0.3 MEGAHERTZ |
| Voltage Standing Wave Ratio | 1.3 AND 1.5 |
| Attenuation Variation Method | CONTINUOUS |
| Application Design | AUDIO |
| 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 |
|---|---|
| 75R-056-F PRIMARY | Jfw Industries Incorporated Dba Jfw Industries Inc (USA) |
NSN 5985-01-646-0858 is a Attenuator,variable, manufactured by Jfw Industries Incorporated Dba Jfw Industries Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-646-0858 has 1 manufacturer part number on file: 75R-056-F (Jfw Industries Incorporated Dba Jfw Industries Inc).
Key specifications for 75R-056-F: Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.4; Impedance Rating in Ohms: 75.0 INPUT-OUTPUT; Frequency Range: 1000.0 MEGAHERTZ MAXIMUM; Body Style: COAXIAL TYPE. 8 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.