The Timer,stop, cataloged under National Stock Number 6645-01-035-9792, 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 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6645-01-035-9792 |
| Primary Part Number | 620NBH 28VDC 1500HRS |
| Item Name | Timer,stop |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Curtis Instruments, Inc. Dba Curtis Pmc Division |
| Status | ACTIVE |
| Current Type | DC |
| Time Indicator Total Capacity | 1500 HRS |
| Mounting Method | FLUSH |
| DC Operated Clutch | NOT INCLUDED |
| Voltage in Volts | 28.0 |
| Timer Type | ELECTRICAL |
| Illuminated Feature | NOT INCLUDED |
| Dial Size | 0.650 IN. L IN |
| Color | BLACK |
| Surface Treatment | EPOXY CASE |
| Material | PLASTIC POLYAMIDE NYLON CASE |
| 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 |
|---|---|
| 620NBH 28VDC 1500HRS PRIMARY | Curtis Instruments, Inc. Dba Curtis Pmc Division (USA) |
| Reference | Meaning |
|---|---|
| 620NBH28VDC1500 | 5/9 Secondary reference Curtis Instruments, Inc. Dba Curtis Pmc Division |
NSN 6645-01-035-9792 is a Timer,stop, manufactured by Curtis Instruments, Inc. Dba Curtis Pmc Division, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-035-9792 has 1 manufacturer part number on file: 620NBH 28VDC 1500HRS (Curtis Instruments, Inc. Dba Curtis Pmc Division).
Key specifications for 620NBH 28VDC 1500HRS: Overall Height: 0.300 INCHES NOMINAL IN; Current Type: DC; Time Indicator Total Capacity: 1500 HRS; Mounting Method: FLUSH. 11 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.