# NSN 6645-01-285-4284: Chronometer

NSN 6645-01-285-4284 (also written 6645012854284; NIIN 01-285-4284) is a chronometer in Federal Supply Class 6645, Time Measuring Instruments. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Oct 2026.

## Identification

- NSN: 6645-01-285-4284 (6645012854284)
- NIIN: 01-285-4284 (012854284)
- Item name: CHRONOMETER
- Federal Supply Class: [FSC 6645 Time Measuring Instruments](https://nsnexplorer.com/fsc/6645/)
- Federal Supply Group: [FSG 66](https://nsnexplorer.com/group/66/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 3.885 |
| ABMK | OVERALL WIDTH | INCHES NOMINAL 2.750 |
| ADAV | OVERALL DIAMETER | INCHES NOMINAL 3.175 |
| AEWG | DIAL OUTSIDE DIAMETER | INCHES 3.125 |
| ANBJ | GRADUATION UNIT | HOUR 1.000 |
| APSJ | SCALE QUANTITY | 3 |
| APSK | SCALE RANGE | HOUR 0.0 TO 24.0 |
| AQFZ | SCALE NAME | 24 HOUR |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| M880A | 63131 | DAVTRON | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-01 | [SPE4A622DC051/SPE4A627F0054](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6645012854284) | CHRONOMETER | WASHINGTON FOUNDRIES INC | $34,221.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6645012854284&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6645012854284
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/6645-01-285-4284/
JSON: https://nsnexplorer.com/api/nsn/6645-01-285-4284.json