The Attenuator,variable, cataloged under National Stock Number 5985-00-238-9291, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-238-9291 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Shaft Type | ROUND, SLOTTED |
| Bushing Length | 0.500 INCHES NOMINAL IN |
| Impedance Rating in Ohms | 600.0 INPUT-OUTPUT |
| Body Diameter | 2.125 INCHES NOMINAL IN |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING |
| Frequency Range | 30.000 HERTZ MINIMUM AND 200.000 HERTZ 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 | C |
| Mounting Thread Quantity | 32 PER INCH |
| Shaft Length | 1.000 INCHES NOMINAL IN |
| Body Length | 2.225 INCHES NOMINAL IN |
| Mounting Facility Nominal Screw Thread Diameter | 0.138 INCHES IN |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS DEGC |
| Application Design | AUDIO |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| Power Rating | 2.0 WATTS AVERAGE |
| 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 |
|---|---|
| A.4859-1 | 3/9 Design control — primary reference U.S. Government activity |
| B4859-1 | 5/9 Secondary reference U.S. Government activity |
| BVA18039-2 | 5/9 Secondary reference Shallco, Inc |
| A.4859-1 | C/1 Advisory reference — outside the item-of-supply concept Multi-Tech Industries Inc. |
NSN 5985-00-238-9291 is a Attenuator,variable, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-00-238-9291: Shaft Type: ROUND, SLOTTED; Bushing Length: 0.500 INCHES NOMINAL IN; Impedance Rating in Ohms: 600.0 INPUT-OUTPUT; Body Diameter: 2.125 INCHES NOMINAL IN. 24 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.