The Attenuator,fixed, cataloged under National Stock Number 5985-01-368-2058, 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 Keysight Technologies Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-01-368-2058 |
| Primary Part Number | 54512-63402 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| Mounting Hole/stud Quantity | 2 |
| Input Impedance Rating in Ohms | 50.0 |
| Mounting Method | THREADED HOLE(S) |
| Criticality Code Justification | FEAT |
| Surface Treatment | NICKEL BODY |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS DEGC |
| Application Design | TRANSMISSION LINE |
| Material | COPPER ALLOY BODY |
| Mounting Facility Thread Size and Series/type Designator | 3.0 ISO M |
| Terminal Type and Quantity | 1 CONNECTOR |
| Output Impedance Rating in Ohms | 50.0 |
| Coaxial Connector Series Designation | BNC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 54512-63402 PRIMARY | Keysight Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 54512-63402 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 54512-63402 | 3/9 Design control — primary reference Keysight Technologies, Inc. |
NSN 5985-01-368-2058 is a Attenuator,fixed, manufactured by Keysight Technologies Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-368-2058 has 1 manufacturer part number on file: 54512-63402 (Keysight Technologies Inc).
Key specifications for 54512-63402: Overall Height: 0.687 INCHES NOMINAL IN; Mounting Hole/stud Quantity: 2; Input Impedance Rating in Ohms: 50.0; Mounting Method: THREADED HOLE(S). 12 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.