The Attenuator Set, cataloged under National Stock Number 5985-01-243-2999, 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 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-243-2999 |
| Primary Part Number | 11583C |
| Item Name | Attenuator Set |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| Component Quantity | 4 |
| Document Type | MFR CATALOG |
| Component Document Page Number | 496 AND 497 |
| Component Document Origin | INDUSTRIAL |
| Document Source | 28480 |
| Furnished Items | CALIBRATION DATA |
| Accessory Component Quantity | 1 |
| 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 |
|---|---|
| 11583C-890 | Keysight Technologies Inc (USA) |
| 11583C PRIMARY | Keysight Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 11583C-890 | 5/9 Secondary reference Keysight Technologies, Inc. |
| 11583C-890 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 11583C | 3/9 Design control — primary reference Keysight Technologies, Inc. |
| 11583C | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
NSN 5985-01-243-2999 is a Attenuator Set, manufactured by Keysight Technologies Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-243-2999 has 2 manufacturer part numbers on file: 11583C-890 (Keysight Technologies Inc), 11583C (Keysight Technologies Inc).
Key specifications for 11583C: Component Quantity: 4; Document Type: MFR CATALOG; Component Document Page Number: 496 AND 497; Component Document Origin: INDUSTRIAL. 7 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.