The Attenuator,variable, cataloged under National Stock Number 5985-00-752-7408, 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 Telephonics Corp/prd Instruments. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-752-7408 |
| Primary Part Number | 184B |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Telephonics Corp/prd Instruments |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 TERMINAL WITH MOUNTING HOLES |
| Frequency Range | 7.000 GIGAHERTZ MINIMUM AND 10.000 GIGAHERTZ MAXIMUM |
| Body Style | WAVEGUIDE TYPE |
| Adjustment Device Type and Quantity | 1 KNOB |
| Precious Material | SILVER |
| Overall Attenuation Range in Decibels | +0.0 TO 40.0 |
| Voltage Standing Wave Ratio | 1.15 |
| Waveguide Flange Designation | UG-39/U |
| Overall Attenuation Accuracy in Decibels | -0.30 TO 0.30 |
| Attenuation Variation Method | CONTINUOUS |
| Precious Material and Location | WAVEGUIDE SURFACES SILVER |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 184B | Telephonics Corp/prd Instruments (USA) |
| Reference | Meaning |
|---|---|
| 184B | 5/9 Secondary reference Peraton Inc |
| CN-533/U | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-00-752-7408 is a Attenuator,variable, manufactured by Telephonics Corp/prd Instruments, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-752-7408 has 1 manufacturer part number on file: 184B (Telephonics Corp/prd Instruments).
Key specifications for 184B: Mounting Facility Type and Quantity: 2 TERMINAL WITH MOUNTING HOLES; Overall Height: 4.125 INCHES NOMINAL IN; Frequency Range: 7.000 GIGAHERTZ MINIMUM AND 10.000 GIGAHERTZ MAXIMUM; Body Style: WAVEGUIDE TYPE. 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.