The Attenuator,variable, cataloged under National Stock Number 5985-01-478-2446, 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 The Charles Stark Draper Laboratory, Inc. Div Headquarters. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-478-2446 |
| Primary Part Number | 319265-001 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | The Charles Stark Draper Laboratory, Inc. Div Headquarters |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.7 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Frequency Range | 0.000 GIGAHERTZ MINIMUM AND 2.500 GIGAHERTZ MAXIMUM |
| Body Style | COAXIAL TYPE |
| Adjustment Device Type and Quantity | 1 KNOB |
| Overall Attenuation Range in Decibels | +0.0 TO 70.0 |
| Attenuation Per Step in Decibels | 1.0 |
| Attenuation Variation Method | STEPPED |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 1.0 WATTS AVERAGE AND 100.0 WATTS PEAK |
| Step Position Quantity | 70 |
| Coaxial Connector Series Designation | SMA |
| 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 |
|---|---|
| 319265-001 | The Charles Stark Draper Laboratory, Inc. Div Headquarters (USA) |
| Reference | Meaning |
|---|---|
| 3010-100 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-478-2446 is a Attenuator,variable, manufactured by The Charles Stark Draper Laboratory, Inc. Div Headquarters, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-478-2446 has 1 manufacturer part number on file: 319265-001 (The Charles Stark Draper Laboratory, Inc. Div Headquarters).
Key specifications for 319265-001: Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.7; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Overall Height: 40.0 MILLIMETERS MAXIMUM MM; Frequency Range: 0.000 GIGAHERTZ MINIMUM AND 2.500 GIGAHERTZ MAXIMUM. 13 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.