The Attenuator,variable, cataloged under National Stock Number 5985-01-131-6928, 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 Viavi Solutionsllc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-131-6928 |
| Primary Part Number | 52163-025J |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Viavi Solutionsllc |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.3 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Frequency Range | 0.000 HERTZ MINIMUM AND 1.000 GIGAHERTZ MAXIMUM |
| Overall Attenuation Range in Decibels | +0.0 TO 142.0 |
| Overall Attenuation Accuracy in Decibels | -0.20 TO 0.20 |
| Attenuation Per Step in Decibels | 1.0 AND 20.0 |
| Attenuation Variation Method | STEPPED |
| Operating Temp Range | +0.0 TO 55.0 CELSIUS DEGC |
| Application Design | AUDIO |
| Step Position Quantity | 29 |
| 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 |
|---|---|
| 52163-025J PRIMARY | Viavi Solutionsllc (USA) |
| Reference | Meaning |
|---|---|
| 52163-025J | 5/9 Secondary reference Marconi Electronics Inc Marconi Instruments Div |
NSN 5985-01-131-6928 is a Attenuator,variable, manufactured by Viavi Solutionsllc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-131-6928 has 1 manufacturer part number on file: 52163-025J (Viavi Solutionsllc).
Key specifications for 52163-025J: Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.3; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Frequency Range: 0.000 HERTZ MINIMUM AND 1.000 GIGAHERTZ MAXIMUM; Overall Attenuation Range in Decibels: +0.0 TO 142.0. 10 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.