The Timer,sequential, cataloged under National Stock Number 6645-01-678-3616, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Omron Electronics Llc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-01-678-3616 |
| Primary Part Number | H3CR-A AC24-48/DC12-48 |
| Item Name | Timer,sequential |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Omron Electronics Llc |
| Status | ACTIVE |
| Current Type | AC AND DC |
| Reset Type | ELECTRIC |
| Inscription Color | WHITE |
| Timer Type | ELECTROCHEMICAL |
| Dial Size | 39.0MM MM |
| Color | GRAY, LIGHT |
| Operating DC Voltage in Volts | 12.0 OR 24.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| H3CRA-PAC2448DC1248 | Afp Industries, Inc. Dba Afp Industries Inc (USA) |
| H3CR-A AC24-48/DC12-48 PRIMARY | Omron Electronics Llc (USA) |
| Reference | Meaning |
|---|---|
| H3CR-A 24-48AC/12-48DC | 5/9 Secondary reference Omron Electronics Llc |
NSN 6645-01-678-3616 is a Timer,sequential, manufactured by Omron Electronics Llc, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-678-3616 has 2 manufacturer part numbers on file: H3CRA-PAC2448DC1248 (Afp Industries, Inc. Dba Afp Industries Inc), H3CR-A AC24-48/DC12-48 (Omron Electronics Llc).
Key specifications for H3CR-A AC24-48/DC12-48: Overall Height: 48.0 MILLIMETERS NOMINAL MM; Current Type: AC AND DC; Reset Type: ELECTRIC; Overall Width: 48.0 MILLIMETERS NOMINAL MM. 7 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.