The Meter,time Totalizing, cataloged under National Stock Number 6645-01-654-5293, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Naval Sea Systems Command. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 — Time Measuring Instruments (FSG 66) |
| Manufacturers | Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 6645-01-654-5293 |
| Primary Part Number | 8477486 |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| 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 |
|---|---|
| 8477486 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| T51E2 | 5/9 Secondary reference E N M Company (inc) (del) Dba E N M Digital Counters |
NSN 6645-01-654-5293 is a Meter,time Totalizing, manufactured by Naval Sea Systems Command, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-654-5293 has 1 manufacturer part number on file: 8477486 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 6645-01-663-9021. Verify interchangeability with system specifications before substitution.
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.