The Attenuator,variable, cataloged under National Stock Number 5985-00-577-9659, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-577-9659 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Shaft Type | ROUND |
| Bushing Length | 0.375 INCHES NOMINAL IN |
| Impedance Rating in Ohms | 600.0 INPUT-OUTPUT |
| Body Diameter | 1.719 INCHES NOMINAL IN |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Frequency Range | 0.000 KILOHERTZ MINIMUM AND 20.000 KILOHERTZ MAXIMUM |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL W/SIDE TERMINALS |
| Adjustment Device Type and Quantity | 1 SHAFT |
| Overall Attenuation Range in Decibels | +0.0 TO 40.0 |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Overall Attenuation Accuracy in Decibels | -1.00 TO 1.00 |
| Attenuation Per Step in Decibels | 2.0 |
| Attenuation Variation Method | STEPPED |
| Schematic Diagram Designator | UNBALANCED LADDER |
| Mounting Thread Quantity | 32 PER INCH |
| Shaft Length | 0.875 INCHES NOMINAL IN |
| Body Length | 0.875 INCHES NOMINAL IN |
| Mounting Facility Nominal Screw Thread Diameter | 0.138 INCHES IN |
| Application Design | AUDIO |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| Power Rating | 2.0 WATTS PEAK |
| Step Position Quantity | 20 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| LA353G | 3/9 Design control — primary reference Meggitt (new Hampshire), Inc |
NSN 5985-00-577-9659 is a Attenuator,variable, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-00-577-9659: Shaft Type: ROUND; Bushing Length: 0.375 INCHES NOMINAL IN; Impedance Rating in Ohms: 600.0 INPUT-OUTPUT; Body Diameter: 1.719 INCHES NOMINAL IN. 23 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.