The Attenuator,variable, cataloged under National Stock Number 5985-01-164-0550, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-164-0550 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Shaft Type | ROUND, SLOTTED |
| Impedance Rating in Ohms | 600.0 INPUT-OUTPUT |
| Body Diameter | 1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN |
| Mounting Facility Type and Quantity | 1 THREADED STUD(S) |
| Shaft Diameter | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Body Style | CYLINDRICAL W/SIDE TERMINALS |
| Adjustment Device Type and Quantity | 1 SHAFT |
| Mounting Facility Screw Thread Series Designator | UNEF |
| Attenuation Variation Method | CONTINUOUS |
| Mounting Thread Quantity | 32 PER INCH |
| Body Length | 1.683 INCHES MINIMUM AND 1.693 INCHES MAXIMUM IN |
| Mounting Facility Nominal Screw Thread Diameter | 0.375 INCHES IN |
| Application Design | AUDIO |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| Power Rating | 4.0 WATTS AVERAGE |
| 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 |
|---|---|
| SM-B-489934 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-164-0550 is a Attenuator,variable, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-01-164-0550: Shaft Type: ROUND, SLOTTED; Impedance Rating in Ohms: 600.0 INPUT-OUTPUT; Body Diameter: 1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN; Mounting Facility Type and Quantity: 1 THREADED STUD(S). 15 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.