The Meter,time Totalizing, cataloged under National Stock Number 6645-01-357-0618, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Isspro, Inc. Dba Isspro Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6645-01-357-0618 |
| Primary Part Number | R8861 |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Isspro, Inc. Dba Isspro Inc |
| Status | ACTIVE |
| Voltage Rating | 4.0 VOLTS MINIMUM AND 40.0 VOLTS MAXIMUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 6645-01-357-0618 is a Meter,time Totalizing, manufactured by Isspro, Inc. Dba Isspro Inc, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-357-0618 has 2 manufacturer part numbers on file: 39-0591 (Winder Power Limited), R8861 (Isspro, Inc. Dba Isspro Inc).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-586-4939. Verify interchangeability with system specifications before substitution.
Key specifications for R8861: Voltage Rating: 4.0 VOLTS MINIMUM AND 40.0 VOLTS MAXIMUM. 1 specification is 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.