The Meter,time Totalizing, cataloged under National Stock Number 6645-01-685-0168, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Honeywell Control Systems Ltd (optoelectronics Division). The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6645-01-685-0168 |
| Primary Part Number | LM-HH4AS-H24 |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Honeywell Control Systems Ltd (optoelectronics Division) |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| LM-HH4AS-H24 | Honeywell Control Systems Ltd (optoelectronics Division) (GBR) |
| FV2337317 | Rheinmetall Bae Systems Land Limited (GBR) |
| Reference | Meaning |
|---|---|
| LM-HH4AS-H24 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6645-01-685-0168 is a Meter,time Totalizing, manufactured by Honeywell Control Systems Ltd (optoelectronics Division), classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-685-0168 has 2 manufacturer part numbers on file: LM-HH4AS-H24 (Honeywell Control Systems Ltd (optoelectronics Division)), FV2337317 (Rheinmetall Bae Systems Land Limited).
Key specifications for LM-HH4AS-H24: Part Name Assigned by Controlling Agency: HOURS RUN METER. 0 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.
NSN 6645-01-685-0168 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.