The Attenuator,variable, cataloged under National Stock Number 5985-01-261-4011, 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24 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-261-4011 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Frequency Range | 0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM |
| Body Style | COAXIAL TYPE |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Segment Attenuation Accuracy in Decibels | -0.40 TO 0.40 AND -0.50 TO 0.50 AND -0.70 TO 0.70 AND -0.90 TO 0.90 AND -1.00 TO 1.00 AND -1.20 TO 1.20 AND -1.30 TO 1.30 AND -1.50 TO 1.50 |
| Adjustment Device Type and Quantity | 1 KNOB W/DIAL |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.250 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +0.0 TO 90.0 |
| Voltage Standing Wave Ratio | 1.45 |
| Segment Attenuation Range in Decibels | +0.00 TO 10.00 AND +10.00 TO 20.00 AND +20.00 TO 30.00 AND +30.00 TO 40.00 AND +40.00 TO 50.00 AND +50.00 TO 60.00 AND +60.00 TO 70.00 AND +70.00 TO 90.00 |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Overall Attenuation Accuracy in Decibels | -0.05 TO 0.05 |
| Attenuation Per Step in Decibels | 10.0 |
| Attenuation Variation Method | STEPPED |
| Mounting Thread Quantity | 32 PER INCH |
| Body Material | ALUMINUM |
| Mounting Facility Nominal Screw Thread Diameter | 0.138 INCHES IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.312 INCHES NOMINAL IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 2.0 WATTS AVERAGE AND 0.2 KILOWATTS PEAK |
| Step Position Quantity | 9 |
| Coaxial Connector Series Designation | SMA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| C5111103-001 | 3/9 Design control — primary reference Signals Warfare Project Manager |
| 4702B-60 | 5/2 Secondary reference U.S. Government activity |
NSN 5985-01-261-4011 is a Attenuator,variable, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-01-261-4011: Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 4 THREADED HOLE(S); Overall Height: 2.840 INCHES NOMINAL IN; Frequency Range: 0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM. 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.
NSN 5985-01-261-4011 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.