The Meter,time Totalizing, cataloged under National Stock Number 6645-00-489-8575, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6645-00-489-8575 |
| Primary Part Number | 2291962 |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Electrical Movement Type | SYNCHRONOUS MOTOR |
| Indicator Type | DIGITAL COUNTER |
| Terminal Quantity | 2 |
| Movement Type | ELECTRICAL |
| Current Type | AC |
| Terminal Type | SOLDER LUG |
| Mounting Method | SEMIFLUSH |
| Body Width | 1.062 INCHES NOMINAL IN |
| Operating Frequency | 60.0 HERTZ NOMINAL |
| Hermetic Protection | PROVIDED |
| Body Length | 1.230 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN |
| Mounting Flange Width | 1.062 INCHES NOMINAL IN |
| Unit Type | MOUNTED |
| Reset Feature | PROVIDED |
| Flange Height | 0.375 INCHES NOMINAL IN |
| Body Depth | 0.500 INCHES NOMINAL IN |
| Mounting Type | FLANGE |
| Voltage Rating | 128.0 VOLTS NOMINAL |
| 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 |
|---|---|
| L512000131 | Lockheed Martin Librascope Corporation (USA) |
| B19241 | Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc (USA) |
| 2291962 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| B19241 | 5/9 Secondary reference U.S. Government activity |
NSN 6645-00-489-8575 is a Meter,time Totalizing, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-00-489-8575 has 3 manufacturer part numbers on file: L512000131 (Lockheed Martin Librascope Corporation), B19241 (Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc), 2291962 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2291962: Electrical Movement Type: SYNCHRONOUS MOTOR; Indicator Type: DIGITAL COUNTER; Terminal Quantity: 2; Movement Type: ELECTRICAL. 18 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.