The Attenuator,variable, cataloged under National Stock Number 5985-01-104-4058, 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 Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-104-4058 |
| Primary Part Number | 28AT16-1E-2PA |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc |
| Status | ACTIVE |
| Frequency Range | 26.500 GIGAHERTZ MINIMUM AND 40.000 GIGAHERTZ MAXIMUM |
| Body Style | WAVEGUIDE TYPE |
| Adjustment Device Type and Quantity | 1 KNOB |
| Overall Attenuation Range in Decibels | +0.5 TO 25.0 |
| Voltage Standing Wave Ratio | 1.40 |
| Attenuation Variation Method | CONTINUOUS |
| Operating Temp Range | +0.0 TO 60.0 CELSIUS DEGC |
| Application Design | WAVEGUIDE |
| Terminal Type and Quantity | 2 FLANGE |
| Power Rating | 25.0 WATTS PEAK |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 28AT16-1E-2PA PRIMARY | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 38-1217501-1 | 5/9 Secondary reference General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems |
NSN 5985-01-104-4058 is a Attenuator,variable, manufactured by Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-104-4058 has 1 manufacturer part number on file: 28AT16-1E-2PA (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc).
Key specifications for 28AT16-1E-2PA: Overall Height: 1.750 INCHES NOMINAL IN; Frequency Range: 26.500 GIGAHERTZ MINIMUM AND 40.000 GIGAHERTZ MAXIMUM; Body Style: WAVEGUIDE TYPE; Adjustment Device Type and Quantity: 1 KNOB. 10 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 5985-01-104-4058 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.