The Timer,stop, cataloged under National Stock Number 6645-00-975-2102, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6645-00-975-2102 |
| Item Name | Timer,stop |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Status | ACTIVE |
| FSC Application Data | TIMER,STOP,EXCEPT GUIDED MISSILE |
| Frequency in Hertz | 50.0 |
| Current Type | AC |
| Control Type | SWITCH |
| Time Indicator Total Capacity | 1000 SEC |
| Mounting Method | PANEL |
| DC Operated Clutch | NOT INCLUDED |
| Voltage in Volts | 220.0 |
| Reset Type | ELECTRIC |
| Inscription Color | BLACK |
| Timer Type | ELECTRICAL |
| Hand Designation and Quantity | 2 SWEEP |
| Hand Color | BLACK |
| Dial Size | 3-3/16 IN. DIA DIAL IN |
| Color | NATURAL |
| Dial Minimum Graduation | 1/10 SEC |
| Material | ALUMINUM OR STEEL CASE |
| Dial Background Color | WHITE |
| Operation Method | SYNCHRONOUS MOTOR |
| Fast Hand Speed | 1 REVOLUTION PER 10 SEC |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY OPEATION METHOD,DIAL SIZE,DIAL BACKGROUND COLOR INSCRIPTION COLOR,HAND DESIGNATION AND QUANTITY,HAND COLOR,AND MOUNTING METHOD |
| 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 |
|---|---|
| S10ER | 3/1 Design control — primary reference Standard Electric Time Corp |
NSN 6645-00-975-2102 is a Timer,stop, classified under FSC 6645, Time Measuring Instruments. Status: active.
Key specifications for 6645-00-975-2102: Overall Height: 7.750 INCHES NOMINAL IN; FSC Application Data: TIMER,STOP,EXCEPT GUIDED MISSILE; Frequency in Hertz: 50.0; Current Type: AC. 21 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.