The Frequency Reference and Electron, cataloged under National Stock Number 6625-01-458-6754, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Keysight Technologies Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6625-01-458-6754 |
| Primary Part Number | 58503A |
| Item Name | Frequency Reference and Electron |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 132.0 AC |
| General Characteristics Item Description | LED FRONT PANEL INDICATOR; RS-232-C DTE REMOTE INTERFACE; 50 TO 60 HERTZ; 6 CHANNEL PARALLEL TRACKING; 10 MEGAHERTZ OUTPUT |
| Wattage Rating | 35.000 WATTS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 58503A PRIMARY | Keysight Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 58503A | 3/9 Design control — primary reference Keysight Technologies, Inc. |
| 58503A | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
NSN 6625-01-458-6754 is a Frequency Reference and Electron, manufactured by Keysight Technologies Inc, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-458-6754 has 1 manufacturer part number on file: 58503A (Keysight Technologies Inc).
Key specifications for 58503A: Voltage in Volts and Current Type: 132.0 AC; General Characteristics Item Description: LED FRONT PANEL INDICATOR; RS-232-C DTE REMOTE INTERFACE; 50 TO 60 HERTZ; 6 CHANNEL PARALLEL TRACKING; 10 MEGAHERTZ OUTPUT; Wattage Rating: 35.000 WATTS; Part Name Assigned by Controlling Agency: GPS TIME AND FREQUENCY REFERENCE RECEIVER. 3 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 6625-01-458-6754 has DEMIL Code Q. 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.