The Meter,time Totalizing, cataloged under National Stock Number 6645-00-997-4589, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-00-997-4589 |
| Primary Part Number | K19763-J0 |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc |
| Status | ACTIVE |
| Electrical Movement Type | SYNCHRONOUS MOTOR |
| Indicator Type | DRUM REGISTER |
| Terminal Quantity | 2 |
| Background Color | BLACK |
| Movement Type | ELECTRICAL |
| Current Type | DC |
| Terminal Type | SOLDER HOOK |
| Mounting Method | FLUSH |
| Body Width | 0.530 INCHES NOMINAL IN |
| Smallest Increment Indicated | 1.00 |
| Marking Color | WHITE |
| Maximum Measurement | 9999.00 |
| Hermetic Protection | PROVIDED |
| Body Length | 1.870 INCHES NOMINAL IN |
| Unit Type | MOUNTED |
| Reset Feature | NOT PROVIDED |
| Mounting Configuration | 3/4-32UN-2B HEX LOCKNUT,1-3/16 IN. ACROSS FLATS IN |
| Mounting Type | PANEL |
| Voltage Rating | 23.0 VOLTS MINIMUM AND 29.0 VOLTS MAXIMUM |
| 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 |
|---|---|
| K19763-J0 PRIMARY | Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc (USA) |
| Reference | Meaning |
|---|---|
| 8437341 | 7/2 Vendor item drawing reference Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| K19763-J0 | 5/9 Secondary reference U.S. Government activity |
| 6645009974589 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| K19703J0 | 5/9 Secondary reference U.S. Government activity |
NSN 6645-00-997-4589 is a Meter,time Totalizing, manufactured by Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-00-997-4589 has 1 manufacturer part number on file: K19763-J0 (Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc).
Key specifications for K19763-J0: Electrical Movement Type: SYNCHRONOUS MOTOR; Indicator Type: DRUM REGISTER; Terminal Quantity: 2; Background Color: BLACK. 20 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.