The Attenuator,variable, cataloged under National Stock Number 5985-01-007-9447, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Microlab/fxr Llc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-007-9447 |
| Primary Part Number | C155A |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microlab/fxr Llc |
| Status | ACTIVE |
| Waveguide Flange Type | COVER |
| Mounting Facility Type and Quantity | 2 TERMINAL |
| Frequency Range | 5.850 GIGAHERTZ MINIMUM AND 8.200 GIGAHERTZ MAXIMUM |
| Body Style | WAVEGUIDE TYPE |
| Attenuation Accuracy Reference Frequency | 6.6 GIGAHERTZ |
| Adjustment Device Type and Quantity | 1 KNOB |
| Overall Attenuation Range in Decibels | +0.0 TO 20.0 |
| Voltage Standing Wave Ratio | 1.15 |
| Waveguide Flange Designation | UG-344/U |
| Overall Attenuation Accuracy in Decibels | -1.50 TO 1.50 |
| Scale Linearity | NONLINEAR |
| Attenuation Variation Method | CONTINUOUS |
| Scale Division Quantity | 20 |
| Operating Temp Range | -40.0 TO 55.0 CELSIUS DEGC |
| Application Design | WAVEGUIDE |
| Terminal Type and Quantity | 2 FLANGE |
| Power Rating | 3.0 WATTS AVERAGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| C155A PRIMARY | Microlab/fxr Llc (USA) |
| Reference | Meaning |
|---|---|
| SM-A-722640 | 5/2 Secondary reference U.S. Government activity |
NSN 5985-01-007-9447 is a Attenuator,variable, manufactured by Microlab/fxr Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-007-9447 has 1 manufacturer part number on file: C155A (Microlab/fxr Llc).
Key specifications for C155A: Waveguide Flange Type: COVER; Mounting Facility Type and Quantity: 2 TERMINAL; Overall Height: 5.281 INCHES NOMINAL IN; Frequency Range: 5.850 GIGAHERTZ MINIMUM AND 8.200 GIGAHERTZ MAXIMUM. 17 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 5985-01-007-9447 has DEMIL Code D. 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.