The Attenuator,variable, cataloged under National Stock Number 5985-01-122-8212, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-122-8212 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.5 |
| Waveguide Flange Type | COVER |
| Mounting Facility Type and Quantity | 4 TERMINAL WITH MOUNTING HOLES |
| Frequency Range | 7.050 GIGAHERTZ MINIMUM AND 10.000 GIGAHERTZ MAXIMUM |
| Body Style | WAVEGUIDE TYPE |
| Adjustment Device Type and Quantity | 1 KNOB |
| Overall Attenuation Range in Decibels | +0.0 TO 40.0 |
| Voltage Standing Wave Ratio | 1.15 |
| Waveguide Flange Designation | UG-138/U |
| Unthreaded Mounting Hole Diameter | 0.169 INCHES NOMINAL IN |
| Attenuation Variation Method | CONTINUOUS |
| Application Design | WAVEGUIDE |
| Terminal Type and Quantity | 2 FLANGE |
| Power Rating | 1.0 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 |
|---|---|
| DBH-430 | 3/9 Design control — primary reference Systron-Donner Corp Microwave/instrument Div |
NSN 5985-01-122-8212 is a Attenuator,variable, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-01-122-8212: Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.5; Waveguide Flange Type: COVER; Mounting Facility Type and Quantity: 4 TERMINAL WITH MOUNTING HOLES; Frequency Range: 7.050 GIGAHERTZ MINIMUM AND 10.000 GIGAHERTZ MAXIMUM. 14 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.