The Meter,time Totalizing, cataloged under National Stock Number 6645-01-322-5643, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Tyco Electronics Crompton Instrument. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6645-01-322-5643 |
| Primary Part Number | 078-156H-PNXH |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Tyco Electronics Crompton Instrument |
| Status | ACTIVE |
| Movement Type | ELECTRICAL |
| Body Width | 4.500 INCHES NOMINAL IN |
| Maximum Measurement | 99999.99 |
| Body Length | 4.500 INCHES NOMINAL IN |
| Voltage Rating | 120.0 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 |
| Part Number | Manufacturer |
|---|---|
| IM-17649 | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| 078-156H-PNXH PRIMARY | Tyco Electronics Crompton Instrument (USA) |
| Reference | Meaning |
|---|---|
| 087-156-PN | 5/9 Secondary reference Tyco Electronics Crompton Instrument |
NSN 6645-01-322-5643 is a Meter,time Totalizing, manufactured by Tyco Electronics Crompton Instrument, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-322-5643 has 2 manufacturer part numbers on file: IM-17649 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 078-156H-PNXH (Tyco Electronics Crompton Instrument).
Key specifications for 078-156H-PNXH: Movement Type: ELECTRICAL; Body Width: 4.500 INCHES NOMINAL IN; Maximum Measurement: 99999.99; Body Length: 4.500 INCHES NOMINAL IN. 6 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.