The Meter,time Totalizing, cataloged under National Stock Number 6645-01-546-2103, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6645-01-546-2103 |
| Primary Part Number | 4030A1000 ITEM NO 165 |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division |
| Status | ACTIVE |
| Indicator Type | DIGITAL COUNTER |
| Movement Type | ELECTRONIC |
| Overall Diameter | 2.270 INCHES NOMINAL IN |
| Hermetic Protection | PROVIDED |
| Unit Type | MOUNTED |
| Reset Feature | PROVIDED |
| Material | PLASTIC CASE |
| 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 |
|---|---|
| 4030A1000 ITEM NO 165 | L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division (USA) |
| Reference | Meaning |
|---|---|
| 98304 | 3/2 Design control — primary reference U.S. Government activity |
| 98304 | 5/9 Secondary reference Hobbs Corp |
NSN 6645-01-546-2103 is a Meter,time Totalizing, manufactured by L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-546-2103 has 1 manufacturer part number on file: 4030A1000 ITEM NO 165 (L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division).
1 possible match (shared part number, not a government interchangeability claim): 1005-01-628-5011. Verify interchangeability with system specifications before substitution.
Key specifications for 4030A1000 ITEM NO 165: Indicator Type: DIGITAL COUNTER; Movement Type: ELECTRONIC; Overall Diameter: 2.270 INCHES NOMINAL IN; Hermetic Protection: PROVIDED. 7 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.