The Meter,time Totalizing, cataloged under National Stock Number 6645-00-907-3404, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-00-907-3404 |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Status | ACTIVE |
| Electrical Movement Type | SYNCHRONOUS MOTOR |
| Body Diameter | 2.546 INCHES NOMINAL IN |
| Indicator Type | DRUM REGISTER |
| Terminal Quantity | 2 |
| Background Color | BLACK |
| Movement Type | ELECTRICAL |
| Current Type | AC |
| Terminal Type | WIRE HOOK |
| Mounting Method | FLUSH |
| Smallest Increment Indicated | 0.10 |
| Operating Frequency | 400.0 HERTZ NOMINAL |
| Marking Color | WHITE NUMERALS |
| Maximum Measurement | 9999.90 |
| Hermetic Protection | PROVIDED |
| Unit Type | MOUNTED |
| Reset Feature | NOT PROVIDED |
| Mounting Configuration | THREE 0.150 IN. DIA MTG HOLES ON 1.580 IN. RADIUS SPACED 120 DEG APART IN |
| Mounting Flange Diameter | 3.500 INCHES NOMINAL IN |
| Material | ALUMINUM OR STEEL CASE |
| Body Depth | 3.406 INCHES NOMINAL IN |
| Mounting Type | PANEL |
| Voltage Rating | 115.0 VOLTS NOMINAL |
| Measurement Unit | HOURS |
| 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 |
|---|---|
| 634EA45S | 3/9 Design control — primary reference Cramer Co Division of Chestnut Group Inc |
NSN 6645-00-907-3404 is a Meter,time Totalizing, classified under FSC 6645, Time Measuring Instruments. Status: active.
Key specifications for 6645-00-907-3404: Electrical Movement Type: SYNCHRONOUS MOTOR; Body Diameter: 2.546 INCHES NOMINAL IN; Indicator Type: DRUM REGISTER; Terminal Quantity: 2. 23 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.