The Clock,wall, cataloged under National Stock Number 6645-01-101-4957, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is The Chelsea Clock Llc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 6645-01-101-4957 |
| Primary Part Number | 40062PH |
| Item Name | Clock,wall |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | The Chelsea Clock Llc |
| Status | ACTIVE |
| Movement Type | ELECTRICAL |
| Current Type | DC |
| Increment in Hours | 12.000 |
| Outside Diameter | 6.000 INCHES NOMINAL IN |
| Dial Quantity | 1 |
| 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 |
|---|---|
| TG-704 | Navigation Aids (USA) |
| 12 HOUR DIAL 6IN | Naval Inventory Control Point Mechanicsburg (USA) |
| CL214002 | Marathon Watch Company Ltd (CAN) |
| 40062PH PRIMARY | The Chelsea Clock Llc (USA) |
| Reference | Meaning |
|---|---|
| 40162 | 5/9 Secondary reference The Chelsea Clock Llc |
| 980 | 5/9 Secondary reference Marathon Watch Company Ltd |
| MIL-C-1194D | 5/9 Secondary reference U.S. Government activity |
| 980 | 5/9 Secondary reference Suncor Energy Inc |
NSN 6645-01-101-4957 is a Clock,wall, manufactured by The Chelsea Clock Llc, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-101-4957 has 4 manufacturer part numbers on file: TG-704 (Navigation Aids), 12 HOUR DIAL 6IN (Naval Inventory Control Point Mechanicsburg), CL214002 (Marathon Watch Company Ltd), 40062PH (The Chelsea Clock Llc).
2 possible matches (shared part number, not a government interchangeability claim): 6645-01-101-4958, 6645-01-101-4959. Verify interchangeability with system specifications before substitution.
Key specifications for 40062PH: Movement Type: ELECTRICAL; Current Type: DC; Increment in Hours: 12.000; Outside Diameter: 6.000 INCHES NOMINAL IN. 5 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.