The Chronometer, cataloged under National Stock Number 6645-01-067-0780, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-01-067-0780 |
| Item Name | Chronometer |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Status | ACTIVE |
| Movement Type | CONTINUOUS RUNNING |
| Waterproof Feature | INCLUDED |
| Mounting Method | PADDED CASE |
| Time Type | MEAN SOLAR |
| Shockproof Feature | PROVIDED |
| Nonmagnetic Characteristic | INCLUDED |
| Carrying Case | PROVIDED |
| Material | PLASTIC CASE |
| Crystal Type | GLASS OR PLASTIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-C-24523 | 5/9 Secondary reference Marathon Watch Company Ltd |
| MIL-C-24523 | 4/1 Identification reference U.S. Government activity |
| PERFORMANCE SPE | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command Logistics Support Engineering Activity |
NSN 6645-01-067-0780 is a Chronometer, classified under FSC 6645, Time Measuring Instruments. Status: active.
Key specifications for 6645-01-067-0780: Movement Type: CONTINUOUS RUNNING; Waterproof Feature: INCLUDED; Mounting Method: PADDED CASE; Time Type: MEAN SOLAR. 9 specifications are 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.
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.