The Timer,sequential, cataloged under National Stock Number 6645-01-366-5033, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6645-01-366-5033 |
| Primary Part Number | 123SCEC182-3 |
| Item Name | Timer,sequential |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Current Type | DC |
| Control Type | SWITCH |
| Interval Expiration Signalling Device | NOT INCLUDED |
| Time Indicator Total Capacity | 1 MIN; 4 MIN |
| Independently Operated Clock | NOT INCLUDED |
| Reset Type | ELECTRIC |
| Timer Type | ELECTRICAL |
| Switch Type | OFF |
| Automatic Electric Circuit Control Switch | INCLUDED |
| Current Rating | 10.000 AMPERES |
| Operation Method | MOTOR DRIVEN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 42E09-4C | Goodrich Corporation (USA) |
| 123SCEC182-3 PRIMARY | Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 42E09-4C | 3/2 Design control — primary reference U.S. Government activity |
| 123SCEC182-3 | 7/9 Vendor item drawing reference Northrop Grumman Systems Corporation |
| 123SCEC182-3 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 42E09-4B | 3/2 Design control — primary reference U.S. Government activity |
NSN 6645-01-366-5033 is a Timer,sequential, manufactured by Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-366-5033 has 2 manufacturer part numbers on file: 42E09-4C (Goodrich Corporation), 123SCEC182-3 (Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems).
Key specifications for 123SCEC182-3: Overall Height: 4.625 INCHES NOMINAL IN; Current Type: DC; Control Type: SWITCH; Interval Expiration Signalling Device: NOT INCLUDED. 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.