The Meter,time Totalizing, cataloged under National Stock Number 6645-00-124-8680, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Curtis Instruments, Inc. Dba Curtis Pmc Division. Government technical data includes 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-00-124-8680 |
| Primary Part Number | 620NB28VDC10000 |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Curtis Instruments, Inc. Dba Curtis Pmc Division |
| Status | ACTIVE |
| Indicator Type | SCALE |
| Terminal Quantity | 3 |
| Movement Type | ELECTROCHEMICAL |
| Current Type | DC |
| Terminal Type | SOLDER |
| Mounting Method | FLUSH |
| Scale Smallest Increment | 1000.00 HOURS |
| Body Width | 0.300 INCHES NOMINAL IN |
| Scale Range | +0.0 TO 10000.0 HOUR |
| Inscription Color | BLACK |
| Inscription Background Color | WHITE |
| Hermetic Protection | NOT PROVIDED |
| Body Length | 1.010 INCHES NOMINAL IN |
| Mounting Flange Width | 0.300 INCHES NOMINAL IN |
| Unit Type | MOUNTED |
| Reset Feature | NOT PROVIDED |
| Mounting Configuration | TWO 0.125 IN. DIA MTG HOLES SPACED 1.320 IN. C TO C; VERTICAL MTG IN |
| Flange Height | 1.600 INCHES NOMINAL IN |
| Material | PLASTIC CASE |
| Body Depth | 0.200 INCHES NOMINAL IN |
| Voltage Rating | 28.0 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 |
|---|---|
| 620NB28VDC10000 PRIMARY | Curtis Instruments, Inc. Dba Curtis Pmc Division (USA) |
| Reference | Meaning |
|---|---|
| 458-1039-010 | 5/9 Secondary reference U.S. Government activity |
| 458-1039-010 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 6645-00-124-8680 is a Meter,time Totalizing, manufactured by Curtis Instruments, Inc. Dba Curtis Pmc Division, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-00-124-8680 has 1 manufacturer part number on file: 620NB28VDC10000 (Curtis Instruments, Inc. Dba Curtis Pmc Division).
Key specifications for 620NB28VDC10000: Indicator Type: SCALE; Terminal Quantity: 3; Movement Type: ELECTROCHEMICAL; Current Type: DC. 21 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.