The Timer,sequential, cataloged under National Stock Number 6645-01-394-0170, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-01-394-0170 |
| Item Name | Timer,sequential |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Status | ACTIVE |
| Reset Type | ANY ACCEPTABLE |
| Timer Type | ELECTRICAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 530-028 | 3/9 Design control — primary reference American Metal Ware Co |
NSN 6645-01-394-0170 is a Timer,sequential, classified under FSC 6645, Time Measuring Instruments. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 2990-01-507-3778, 5310-01-559-5973. Verify interchangeability with system specifications before substitution.
Key specifications for 6645-01-394-0170: Reset Type: ANY ACCEPTABLE; Timer Type: ELECTRICAL; End Item Identification: T/L URN STD.. 2 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.