The Clock,calibration, cataloged under National Stock Number 6645-00-021-6408, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Keysight Technologies Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-00-021-6408 |
| Primary Part Number | 05061-6085 |
| Item Name | Clock,calibration |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| General Characteristics Item Description | W/SWEEP SECOND HAND |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 05061-6085 PRIMARY | Keysight Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 05061-6085 | 3/9 Design control — primary reference Keysight Technologies, Inc. |
| 05061-6085 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 05061-6085 | 5/9 Secondary reference Agilent Technologies, Inc. Div Agilent Technologies Headquarters |
NSN 6645-00-021-6408 is a Clock,calibration, manufactured by Keysight Technologies Inc, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-00-021-6408 has 1 manufacturer part number on file: 05061-6085 (Keysight Technologies Inc).
Key specifications for 05061-6085: General Characteristics Item Description: W/SWEEP SECOND HAND; End Item Identification: 66255756749. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 6645-00-021-6408 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.