The Clock,wall, cataloged under National Stock Number 6645-00-727-3286, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-00-727-3286 |
| Item Name | Clock,wall |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Status | ACTIVE |
| Movement Type | MECHANICAL |
| Second Hand Type | SWEEP |
| Mounting Method | SURFACE |
| Bezel Type | HINGED |
| Resetting Device Location | ANY ACCEPTABLE AND BACK |
| Increment in Hours | 24.000 |
| Shape | ROUND |
| Outside Diameter | 3.250 INCHES NOMINAL IN |
| Dial Quantity | 1 |
| Current Interruption Signal | NOT INCLUDED |
| Inscription Background Color | BLACK |
| Second Hand Color | WHITE |
| Illuminated Feature | NOT INCLUDED |
| Dial Scale Marking Luminosity | LUMINOUS |
| Mechanical Movement Type | SPRING WOUND |
| Nonmagnetic Characteristic | INCLUDED |
| Maximum Running Time | 8.0 DAYS |
| Color | BRASS |
| Surface Treatment | COPPER ALLOY CASE |
| Regulating Device Location | BACK |
| Material | ALUMINUM OR STEEL CASE |
| Escapement Type | LEVER |
| 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 |
|---|---|
| F26840 | 3/9 Design control — primary reference U.S. Government activity |
NSN 6645-00-727-3286 is a Clock,wall, classified under FSC 6645, Time Measuring Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-373-0268. Verify interchangeability with system specifications before substitution.
Key specifications for 6645-00-727-3286: Movement Type: MECHANICAL; Second Hand Type: SWEEP; Mounting Method: SURFACE; Bezel Type: HINGED. 22 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.