The Meter,time Totalizing, cataloged under National Stock Number 6645-01-099-6887, 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 23 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-01-099-6887 |
| Primary Part Number | K42202-P4 |
| 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 |
| Body Diameter | 2.547 INCHES MAXIMUM IN |
| Indicator Type | DRUM REGISTER |
| Terminal Quantity | 2 |
| Background Color | BLACK BACKGROUND FOR HOURS,WHITE BACKGROUND FOR TENTHS |
| Movement Type | ELECTRICAL |
| Current Type | AC |
| Terminal Type | WIRE LEAD |
| Mounting Method | FLUSH |
| Smallest Increment Indicated | 0.10 |
| Operating Frequency | 60.0 HERTZ NOMINAL |
| Marking Color | WHITE NUMERALS FOR HOURS,BLACK NUMERALS FOR TENTHS |
| Maximum Measurement | 99999.90 |
| Hermetic Protection | NOT PROVIDED |
| Unit Type | MOUNTED |
| Reset Feature | NOT PROVIDED |
| Mounting Configuration | THREE 0.150 IN. DIA MTG HOLES EQUALLY SPACED ON 1.580 IN. RADIUS IN |
| Mounting Flange Diameter | 3.490 INCHES MINIMUM AND 3.510 INCHES MAXIMUM IN |
| Material | PLASTIC CASE |
| Body Depth | 2.062 INCHES MAXIMUM IN |
| Mounting Type | FLANGE |
| Voltage Rating | 115.0 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 |
|---|---|
| K42202-P4 PRIMARY | Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc (USA) |
| Reference | Meaning |
|---|---|
| K42202-P4 | 3/9 Design control — primary reference U.S. Government activity |
NSN 6645-01-099-6887 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 6645-01-099-6887 has 1 manufacturer part number on file: K42202-P4 (Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc).
Key specifications for K42202-P4: Electrical Movement Type: SYNCHRONOUS MOTOR; Body Diameter: 2.547 INCHES MAXIMUM IN; Indicator Type: DRUM REGISTER; Terminal Quantity: 2. 23 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.